Download Chromalox PF479-6 Specifications
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® Chromalox Installation SERVICE REFERENCE DIVISION and 4 SALES REFERENCE RENEWAL PARTS IDENTIFICATION SECTION LUH PF479-6 (Supersedes PF479-5) 161-303474-001 DATE JANUARY, 2003 Type LUH Horizontal Unit Heater Specifications — Table 1 Electrical Data (60 Hz) Dimensions (In.) Model LUH-D-02-81 LUH-D-02-21 LUH-D-02-71 LUH-D-04-81 LUH-D-04-83 LUH-D-04-21 LUH-D-04-23 LUH-D-04-71 LUH-D-04-43 LUH-D-05-81 LUH-D-05-83 LUH-D-05-21 LUH-D-05-23 LUH-D-05-71 LUH-D-05-43 LUH-D-07-81 LUH-D-07-83 LUH-D-07-21 LUH-D-07-23 LUH-D-07-71 LUH-D-07-43 LUH-D-10-81 LUH-D-10-83 LUH-D-10-21 LUH-D-10-23 LUH-D-10-43 LUH-D-12-83 LUH-D-12-23 LUH-D-12-43 LUH-D-15-83 LUH-D-15-23 LUH-D-15-43 LUH-D-20-23 LUH-D-20-43 LUH-D-25-43 LUH-D-30-83 LUH-D-30-23 LUH-D-30-43 LUH-D-35-23 LUH-D-35-43 LUH-D-40-23 LUH-D-40-43 LUH-D-45-43 † † † † † † † † † † † † Volts Watts Phase Amps 208 208/240 277 2,667 2,000/2,667 2,667 208 4,000 208/240 3,000/4,000 277 480 4,000 4,000 208 5,000 208/240 3,750/5,000 277 480 5,000 5,000 208 7,500 208/240 5,625/7,500 277 480 7,500 7,500 208 10,000 208/240 7,500/10,000 480 208 208/240 480 208 208/240 480 208/240 480 480 208 208/240 480 208/240 480 208/240 480 480 10,000 12,500 9,375/12,500 12,500 15,000 11,250/15,000 15,000 15,000/20,000 20,000 25,000 30,000 22,500/30,000 30,000 26,250/35,000 35,000 30,000/40,000 40,000 45,000 1 1 1 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 12.8 11.1 * 9.6 19.2 11.2 16.7 * 9.6 * 14.5 4.8 24.0 13.8 20.8 * 12.1 * 18.2 6.0 36.1 20.9 31.1 * 18.1 * 27.2 9.0 48.0 27.8 41.7 * 24.0 * 12.0 34.8 30.1 * 15.1 41.8 36.2 * 18.1 48.0 * 24.0 30.0 83.4 72.2 * 36.1 84.3 * 42.1 96.0 * 48.0 54.1 *Note: 208V amperage is 86% of 240V value. © 2010 Chromalox, Inc. BTU Height Width Depth 8,850 16 13-1/8 8-7/8 13,661 16 13-1/8 8-7/8 17,076 16 13-1/8 8-7/8 25,598 20-1/2 17-1/4 11-1/2 34,130 20-1/2 17-1/4 11-1/2 42,663 20-1/2 17-1/4 11-1/2 51,195 20-1/2 17-1/4 11-1/2 68,460 24 20-1/8 11-1/2 85,525 24 20-1/8 11-1/2 102,390 24 20-1/8 17-1/4 119,455 24 20-1/8 17-1/4 136,520 24 20-1/8 17-1/4 153,585 24 20-1/.8 17-1/4 Standard Contactor Rating (Qty.) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 50A (1) 30A (1) 30A (1) 30A (1) 30A (1) 30A (1) 50A (1) 30A (1) 30A (1) 30A (1) 30A (1) 50A (1) 50A (1) 30A (1) 50A (1) 50A (1) 30A (1) 50A (1) 30A (1) 50A (1) 50A (2) 50A (2) 30A (2) 50A (2) 30A (2) 50A (2) 30A (2) 30A (2) † These models can be field changed from single phase to three phase or three phase to single phase. IMPORTANT Failure to understand and follow these installation instructions and the “WARNING” notes therein may result in serious personal injury from electrical shock, or from the heater failing due to faulty installation. Do not mount mercury type thermostat directly on unit. Vibration could cause heater to malfunction. The heater must be mounted at least 7' above the floor to prevent accidental contact with the heating elements or fan blade which could cause injury. Keep at least 5' clearance in front of the heater. Refer to Table 2 for side, top and back clearance requirements. The ceiling mounting structure and the anchoring provisions must be of sufficient strength to support the combined weight of the heater and mounting bracket. (Refer to Table 3 for weights of heater and bracket.) The wall or mounting surface, and the anchoring provisions must be capable of supporting the combined weight of the heater and mounting brackets cantilevered from the mounting surface. (Refer to Table 3 for weights of heater and brackets and for cantilevered force expressed in foot-pounds.) Fan blade rotation must be checked. If airflow is not moving out through the louvers, interchange any two of the three customer power leads on three-phase units only. FIRE/EXPLOSION HAZARD. This heater is not intended for use in hazardous atmospheres where flammable vapors, gases, liquids or other combustible atmospheres are present as defined in the National Electrical Code. Failure to comply can result in personal injury, explosion or fire. For these applications see PDS CXHA-EP (PF490). Users should install adequate back-up controls and safety devices with their electric heating equipment. Where the consequenses of failure may be severe, back-up controls are essential. GENERAL Large rooms require multi-unit installation. Number and capacity of units will be determined by volume of building and square feet of floor area to be heated. Arrange units to provide perimeter air circulation where each unit supports the air stream from another. Heater Location Instructions: Arrange units so their discharge air streams: A. are subjected to a minimum of interference from columns, machinery and partitions. B. wipe exposed walls without blowing directly at them. C. are directed away from room occupants in comfort heating. D. are directed along the windward side when installed in a building exposed to a prevailing wind. Locate thermostat on interior partition walls or posts away from cold drafts, internal heat sources and away from heater discharge air streams. Small rooms can be heated by one unit heater. Where two walls are exposed, the heater should be mounted as shown in Figure 1. Exposed Exposed Ex po se d d se po Ex se po Ex d Exposed Figure 1 INSTALLATION A. CEILING. The ceiling mounting bracket is fastened to the top of the heater using the four bolts supplied with the mounting bracket. The bracket is then mounted to the ceiling using a 5/8” bolt (supplied by others). Please read all of the following instructions: Failure to observe these precautions could result in personal injury or equipment damage. 1. The heater must be mounted at least 7’ above the floor to prevent accidental contact with the heating elements or fan blade which could cause injury. 2. Keep at least 5’ clearance in front of heater. Refer to Table 2 for side, top and back clearance requirements. CEILING (Alternate) 1. The heater can be rod mounted to the ceiling by installing four threaded mounting rods in the threaded holes located on the top of the heater as shown in Figure 2. (Refer to Table 4 for mounting rod thread size.) 2. Securely attach the four mounting rods to the ceiling. (Refer to Table 2 for wall and ceiling clearances, and Figure 3 for mounting spacing specifications). B. WALL. Wall mounting kits include both a ceiling mounting bracket and a wall mounting bracket. First, attach the ceiling mounting bracket to the heater as described in step 4A. Then attach the wall mounting bracket to the wall using four 3/8” bolts (supplied by others). Attach the ceiling mounting bracket on the heater to the wall mounting bracket using the 5/8” bolt provided. The heater may be rotated to discharge in the desired direction. Open and adjust louvers to desired position. See Figure 4 and 5 for additional mounting details. Clearance Requirements — Table 2 Basic Model LUH-02 through LUH-05 LUH-07 through LUH-15 LUH-20 and LUH-25 LUH-30 through LUH-45 Back to Wall 6 6 6 6 Mounting Limitations (In.) Side Top to to Wall Ceiling 6 4 6 6 6 6 6 6 3. The ceiling mounting structure and the anchoring provisions must be sufficient to support the combined weight of the heater and mounting bracket. (Refer to Table 3 for weights of heater and bracket.) 4. The wall or mounting surface and the anchoring provisions must be capable of supporting the combined weight of the heater and mounting brackets cantilevered from the mounting surface. (Refer to Table 3 for weights of heater and brackets and for cantilevered force expressed in foot-pounds.) The heater may be mounted either on the ceiling or on the wall as follows: Heater & Bracket Weights Combined — Table 3 Heater Model LUH-02 through LUH-05 LUH-07 through LUH-15 LUH-20 through LUH-25 LUH-30 through LUH-45 2 Weight (Lbs.) Heater and Brackets Ceiling Wall Weight Weight Ft./Lbs. 33-3/4 55 78 117 38-1/4 67-1/4 90-1/4 141-1/4 48 112 150 400 INSTALLATION BACK WALL Threaded Mounting Holes G S I D E L I W A L L X Figure 2 Rod Spacing Table 4 — Rod Thread Type and Spacing Dimensions (In.) for Horizontal Discharge Dimensions (In.) Rod Thread Type Unit 2 - 5kW 7-1/2 - 15kW 20 - 25kW 30 - 45kW I 5/16 - 18 4-1/2 3/8 - 16 6-1/4 3/8 - 16 6-1/4 3/8 - 16 11-3/4 G L X 5-1/2 8-1/4 8-1/4 8-1/4 2-3/4 4-1/8 4-1/8 4-1/8 2-1/4 3-1/8 3-1/8 5-7/8 Figure 3 Wall and Ceiling Clearance (Table 2) Note: W = Minimum Distance to Wall for Full 180˚ Swivel One 11/16" mounting hole for swivel mounting for ceiling V W N Wall M U A Knockouts 1/2" C B Figure 4 Optional Ceiling Swivel Mounting Bracket Dimensions (In.) Bracket Model No. A WUH-04A 16 13-1/8 8-7/8 B C M 6 N U V Wt. Use W (Lbs.) With 4-7/16 4 4-1/2 10-1/2 3 Chr omal ox ® LUH-02 04, 05 Figure 6 Heater Back View WUH-05 20-1/2 17-1/4 11-1/2 8 6-1/4 6 7-1/4 16 LUH-07 5-1/2 10, 12, 15 WUH-05 24 20-1/8 11-1/2 8 6-1/4 6 7-1/4 16 5-1/2 LUH-20, 25 21 LUH-30 35, 40, 45 WUH-06 24 20-1/8 17 13-3/4 10 6 7-1/4 11 Figure 5 Optional Wall Swivel Mounting Bracket Knockout Sizes Dimensions - (In.) Bracket Model Number P Q R S WUH-01A 1-3/4 21-1/2 6-3/4 WUH-02 2 28-7/16 WUH-02 2 28-7/16 WUH-03 5-1/2 28-11/16 T Bracket Weight (Lbs.) Use With 5-1/2 14-15/16 4-1/2 LUH-02 04, 05 9-1/2 8-3/8 22-1/4 12-1/4 LUH-07 10, 12, 15 9-1/2 8-3/8 22-1/4 12-1/4 LUH-20, 25 5 3-1/2 33-1/4 24-1/4 LUH-30, 35, 40, 45 3 LUH-02 - LUH-05 LUH-07 - LUH-15 LUH-20 - LUH-25 LUH-30 - LUH-45 3/4” (1) 1” (1) 3/4”, 1”, 1-1/4”(1) 3/4”, 1”, 1-1/4”(1) WIRING 3. Consult the local wiring code in your area. SUMMER FAN SWITCH (MOUNTED ON FRONT OF HEATER). When the switch handle is pointing toward the “SUMMER” position, the fan will run continuously. When the switch handle is pointing toward the “WINTER” position, the fan will run only when the heating elements are hot. REMOTE FAN SWITCH (MANUAL SWITCH-LINE VOLTAGE). 480V requires an additional relay. The wall switch is packed in the wiring compartment. The remote fan switch is mounted external and remote from the LUH unit heater. The voltage of the remote fan switch is the same as the supply voltage to the LUH heater. 1. Use 14 gauge copper, NEC Class 1, 600V rated insulated wire. Wiring must meet all Local and NEC requirements for 480V service. 2. Install the remote fan switch in standard wall box in any convenient location that is protected from traffic or other accidental damage. 3. Connect the 14 gauge copper field wire to the switch lead wires with suitable connectors. REMOTE FAN SWITCH (USED WITH 24 or 120-VOLT RELAY) (Available as a kit or factory installed option). The wall switch is packed in the wiring compartment. 1. Use 18 gauge (min.) NEC Class 1, 600V wiring that meets all Local and NEC requirements. 2. Install the wall switch in a standard wall box in any convenient location that is protected from traffic or other accidental damage. 3. Connect the field wire to the switch lead wires with suitable connectors. ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property damage. Heater must be installed by a qualified person in accordance with the National Electrical Code, NFPA 70. ELECTRIC SHOCK HAZARD. Any installation involving electric heaters must be performed by a qualified person and must be effectively grounded in accordance with the National Electrical Code to eliminate shock hazard. 1. Use heater only on the voltage and frequency specified on the nameplate. 2. All wiring should be done in accordance with local codes and the National Electrical Code by a qualified person as defined in the NEC. 3. Two knockouts are provided on the back of the heater for wire entry. See Figure 6 for location of knockouts. 4. Branch circuit wire for connection to heater must be at least 60°C wire. 5. The bottom access door is hinged. There is one screw that must be loosened to gain access (Figure 3). This screw is the captive type; do not try to remove it. 6. A ground terminal is provided near the power terminal board. The ground wire should be connected before other connections are made. 7. Stripped wire leads are supplied to be connected to accept the correct size power supply wire. Copper wire rated at 600V and 60°C is satisfactory for the heater branch circuit. 8. Electrical accessories, either kits or factory-installed options, are shown connected by a dash line on the heater wiring diagram. 9. Wiring connections are to be made on designated wire leads as shown in the wiring diagrams located inside the access door. POWER DISCONNECT SWITCH (Available as a kit or factory installed option.) This switch (Figure 7) disconnects the power to the power leads when the handle is placed in its off position. 1. Use copper conductor supply wire only when connecting to the power line. 2. Connection to the switch pigtails should be made with compression connectors and the joint should be then well insulated. Power Disconnect Switch To Power Supply 15/16” Chromalox ® Figure 8 — Thermostat Location, Front View OPTIONAL THERMOSTAT (LUH-TK) Heaters can be equipped with an optional thermostat of the Bulb and Capillary type for automatic temperature control (Figure 8). The thermostat controls the heating elements and fan simultaneously to achieve set temperature. The “Lo” setting of the thermostat is approximately 40°F, and the “Hi” setting is approximately 90°F. CONTROL VOLTAGE WIRING - EXTERNAL REMOTE THERMOSTATS AND FAN SWITCHES Contactor L1 S1 L2 S2 L3 S3 ELECTRIC SHOCK HAZARD. Line voltage is present on some of the terminals. Always disconnect the power from the heater before making any connections. 1. Use 600V, NEC Class 1 insulated wiring with a minimum gauge of 18 for thermostats and a minimum gauge of 14 for line voltage motor switch (remote fan switch without relay). 2. The thermostat should be located in the area to be heated on an inside wall. The thermostat should not be exposed to drafts, sunlight, radiation from hot objects, or in a direct line with the discharge from the unit heater. 3. Install the thermostat approximately 5 feet above the floor line. 4. Install the remote fan switch in any convenient location that is protected from traffic or likely accidental damage. 5. Internal optional controls are shown on the unit heater wiring diagrams by a dash line. Use wiring diagrams as listed for model number on (A through X), pages 5, 6 and 9. For installation and optional control kits, refer to instruction sheets listed on page 8. See Notes See Note 2 Notes: 1. This illustration shows wiring hook up for three phase service. Remove lead wires marked L2 and S2 when using single phase power service. 2. For units without contactors, disconnect switch is to be wired to lead wires on heater power. 3. Use copper supply wire only with this switch. Figure 7 Power Disconnect Switch Wiring Diagram 4 WIRING DIAGRAMS 1 Phase 2 Or 3 Elem Optional Thermostat Built-in Or Field Installed To Element Wiring 3 Phase Delta Field Wiring Built-in Or Field Installed Factory Wiring Optional Thermostat Built-in Or Field Installed Cutout T1 T2 T3 T1 T2 T3 C1 3 Phase Delta MOTOR 1O OR 3O Cutout X1 X2 T1 T2 T3 L1L2L3 X1 X1 X2 H2 H1 3Ø Wiring Only L1L2L3 L3 L2 L1 Power 60 HZ 208 BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 277 BLK BRN BLK WHT YEL BLU Field Wiring Built-in Or Field Installed Factory Wiring 480 BLK BLK/RED BLK WHT YEL BLU 30-00,32-00 30-40,32-40 1 Phase 2 Or 3 Elem C1 L1 Motor 1Ø Or 3Ø 3 Phase Delta C1 T1 T2 T3 C1 L1 T1 T2 T3 C1 L1L2L3 Cutout Optional Fan Relay Built-in Or Field Installed L3 Standard Motor Connection 3O Wiring Only Motor 1O Or 3O H2 L1 L2 L3 T1 T2 T3 Optional Disconnect Switch Built-in Or Field Installed X1 BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 277 BLK BRN BLK WHT YEL BLU 480 BLK BLK/RED BLK WHT YEL BLU Control Power By Others Optional Thermostat Built-in Or Field Installed L1 Figure D Optional Summer Fan Switch Built-in Or Field Installed 1 Phase 2 Or 3 Elem 1 2 3 7 9 8 10 11 12 C1 Field Installed Built-in Or Field Installed Factory Wiring Motor 1Ø Or 3Ø Optional Thermostat Built-in Or Field Installed Optional Summer Fan Switch Built-in Or Field Installed T1 T2 T3 3Ø Wiring Only T1 T2 T3 L3 L2 L1 C1 3Ø Wiring Only L1 Power 60 HZ L3 Note: 480V Heaters Require Fan Relay For 480V Motor (See Fig. F) Optional Fan Relay Built-in Or Field Installed Cutout C1 Motor 1O Or 3O C2 T1 T2 T3 T1 T2 T3 C1 C3 C3 2 1 3 7 9 8 10 11 12 3 Phase Delta Optional Disconnect Switch Built-in Or Field Installed To Element Wiring C3 C1 Control Power (By Others) 3O Wiring Only L1 L2 L3 Motor 1Ø Or 3Ø Motor 1O Or 3O T1 T2 T3 Field Installed Built-in Or Field Installed Factory Wiring Power 60 HZ C1 T1 T2 T3 T1 T2 T3 C1 Optional Disconnect Switch Built-in Or Field Installed 31-43,33-43 31-45,33-45 C1 L1L2L3 Standard Motor Connection Standard Motor Connection 31-41,33-41 31-42,33-42 31-44,33-44 Figure E 3 Phase Delta Power 60 HZ Field Installed Built-in Or Field Installed Factory Wiring 31-00,33-00 31-40,33-40 C1 Cutout Optional Thermostat Built-in Or Field Installed Motor 1O Optional Disconnect Switch Built-in Or Field Installed L3 Standard Motor Connection T1 T2 T3 L3 BLU 3Ø Wiring Only C1 C2 L1 BLK WHT YEL L3 L2 L1 T1 T2 T3 To Element Wiring C1 C1 BRN 1 Phase 2 Or 3 Elem Motor 1O Or 3O Control Power By Others T1 T2 T3 BLK T1 T2 T3 C1 Figure C 1 Phase 2 Or 3 Elem 277 C2 T1 T2 T3 L1L2L3 BLU X2 208 Figure F Optional Thermostat Built-in Or Field Installed To Element Wiring To Element Wiring Optional Summer Fan Switch Built-in Or Field Installed Cutout Cutout Motor 1Ø 1 2 3 7 9 8 10 11 12 T1 T2 T3 3 Phase Delta C1 T1 T2 T3 C1 T1 T2 T3 C1 Motor 1Ø Or 3Ø L1L2L3 3Ø Wiring Only T1 T2 T3 1 Phase 2 Or 3 Elem C1 3Ø Wiring Only 3Ø Wiring Only L1L2L3 L3 L2 L1 C1 L1 L3 L3 L2 L1 Power 60 HZ 1 Phase 2 Or 3 Elem Power 60 HZ T1 T2 T3 Motor 1Ø Or 3Ø Optional Disconnect Switch Built-in Or Field Installed Field Installed Built-in Or Field Installed Factory Wiring 34-00,35-00 34-40,35-40 T1 T2 T3 C1 Figure G T1 T2 T3 C1 L1 L3 Standard Motor Connection Figure H 5 X2 BLU BLK WHT YEL Power 60 HZ 30-45, 32-45 30-43, 32-43 3 Phase Delta X1 BLK WHT YEL ORG Cutout C3 C1 Transformer Color Code Index X2 X2 RED BLK To Element Wiring L1L2L3 X1 X1 BLK 240 30-41,32-41 30-42,32-42 30-44,32-44 Optional Thermostat Built-in Or Field Installed 3 Phase Delta X2 24V SEC. PRI. XFMR 120V SEC. PRI. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. H2 H2 208 C1 T1 T2 T3 C1 H1 H1 H1 T1 T2 T3 To Element Wiring X1 L3 Transformer Color Code Index PRI. 24V SEC. PRI. XFMR 120V SEC. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. Figure B Optional Field Wiring Thermostat Built-in Or Field Installed Built-in Or Field Installed Factory Wiring C1 Optional Summer C2 Fan Switch 1 Phase 2 Or 3 Elem Built-in Or Field Installed C3 T1 T2 T3 Power 60 HZ Optional Disconnect Switch Built-in Or Field Installed Figure A 1 2 3 7 9 8 10 11 12 L3 L2 L1 3Ø Wiring Only Optional Disconnect Switch Built-in Or Field Installed X2 Motor 1Ø Or 3Ø T1 T2 T3 Transformer Color Code Index 24V SEC. PRI. XFMR 120V SEC. PRI. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. C1 C1 H2 H1 H2 3O Wiring Only C1 XFMR H1 T1 T2 T3 XFMR X1 L3 1 2 3 7 9 8 10 11 12 X2 C1 L1 Optional Summer Fan Switch Built-in Or Field Installed To Element Wiring Optional Disconnect Switch Built-in Or Field Installed Field Installed Built-in Or Field Installed Factory Wiring 34-41,35-41 34-42,35-42 34-44,35-44 WIRING DIAGRAMS Field Installed Built-in Or Field Installed Factory Wiring Optional Thermostat Built-in Or Field Installed 1 Phase 2 Or 3 Elem Cutout C1 T1 T2 T3 C1 L1 C2 2 1 3 7 Optional Fan Relay Built-in Or Field Installed T1 T2 T3 C3 Motor 3o Optional Thermostat Built-in Or Field Installed Motor 1Ø Or 3Ø Stage 1 T1 T2 T3 C3 X1 X2 H1 H2 9 8 10 11 12 L3 3Ø Wiring Only L1 L2 L3 Transformer Color Code Index T1 T2 T3 C1 T1 T2 T3 Optional Disconnect Switch Built-in Or Field Installed 34-43,35-43 34-45,35-45 C1 Standard Motor Connection To Elements Stage 2 T1 T2 T3 T1 T2 C1 X1 H2 BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 480 BLK BLK/RED BLK WHT YEL BLU X2 Elements Elements Optional Thermostat Built-in Or Field Installed Contactor C1 Contactor (Typ.) C3 Motor 3Ø 1 2 3 7 9 8 10 11 12 C1 T1 T2 T3 C2 X2 Contactor 1 3 7 Built-in Or Field Installed Factory Wiring Transformer Color Code Index PRI. PRI. VOLT LEAD XFMR CLRS AL2 AL3 AL1 120V SEC. 24V SEC. LEAD CLRS. LEAD CLRS. H1 H2 X1 X2 X1 X2 208 BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU Note: Heater requires Fan Relay for 480V Motors. (See Figure L) H2 H1 30-41, 30-42, 30-44 32-41, 30-42, 32-44 3 Phase, 60 HZ Power X1 X2 X1 X2 X1 X2 208 BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 480 BLK BLK/RED BLK WHT YEL BLU BL3 BL2 BL1 Optional Disconnect Switch Built-in Or Field Wiring Field Installed Built-in Or Field Installed Factory Wiring For Use With 480V 30-43,32-43 30-45,32-45 Figure K L1L2 L3 3 Phase 60 HZ Power Figure L Elements Elements Stage 1 Motor 3Ø Fuses KTK-3 C3 C2 Control Power (By Others) T1 T2 T3 C1 T1 T2 T3 Contactor (Typ.) Cutouts C1 C2 1 2 3 7 9 8 10 11 12 T1 T2 T3 C1 T1 T2 T3 Contactor (Typ.) Stage 2 Stage 1 Stage 2 Fuses KTK-3 C3 C2 Elements Elements Field Wiring Built-in Or Field Installed Factory Wiring Motor 3Ø Control Power (By Others) AL2 AL3 Fuses KTK-3 Fuses (When Req'd) AL1 H2 H1 Transformer Color Code Index 24V SEC. PRI. XFMR 120V SEC. PRI. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. Optional Disconnect Switch Built-in Or Field Installed L1 L2 L3 Motor 3Ø Summer Fan Switch BL1 C2 C3 C1 XFMR Optional Summer Fan Switch BL3 Built-in Or Field Installed BL2 T1T2T3 Contactor C1 2 9 8 10 11 12 Fuses (When Req'd) H2 Stage 2 Cutouts T1T2T3 Standard Motor Connection XFMR H1 Fan Relay Stage 1 Fuses KTK-3 Elements Elements C2 C2 T1 T2 T3 X1 3 Phase, 60 HZ Power 30-00, 32-00 30-40, 32-40 T1T2T3 T1T2T3 Stage 2 Stage 1 Cutouts T3 L3 L2 L1 Optional Disconnect Switch Built-in Or Field Installed C2 Motor 3Ø Optional Thermostat Built-in Or Field Installed BL3 BL2 BL1 X2 H1 208 X1 Fuses (When Req'd) Figure J C2 Standard Motor Connection C2 AL1 Figure I Motor 3Ø T1 T2 T3 Contactor (Typ.) AL2 AL3 24V SEC. PRI. XFMR 120V SEC. PRI. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. Power 60 HZ Motor 1Ø Or 3Ø To Elements Stage 1 C1 Cutouts XFMR Optional Summer Fan Switch Built-in Or Field Installed 3 Phase Delta L1L2L3 Stage 2 Fuses KTK-3 T1 T2 T3 C1 Elements Elements Field Installed Built-in Or Field Installed Factory Wiring To Element Wiring C2 Cutouts C1 To Elements Stage 1 Optional Thermostat Built-in Or Field Installed AL2 AL3 Fuses (When Req'd) BL1 AL1 Field Installed Built-in Or Field Installed Factory Wiring L3 L2 L1 Optional Disconnect Switch Built-in Or Field Installed 31-00, 33-00 31-40, 33-40 Motor 3Ø To Elements Stage 2 Optional Thermostat Built-in Or Field Installed Optional Thermostat Built-in Or Field Installed (Single Stage) T1T2T3 T1T2T3 C1 Contactor C2 C1 Note: Heater Requires Fan Relay For 480V Motors (See Fig. O) C2 Standard Motor Connection Elements Elements Stage 1 Contactor C1 Summer Fan Switch C4 AL2 AL3 Contactor Optional Disconnect Switch Built-in Or Field Installed Field Installed Built-in Or Field Installed Factory Wiring Motor 3Ø Stage 1 For Use With 480V 31-43,33-43 31-45,33-45 Stage 2 C2 C3 C2 C2 C3 Contactor (Typ.) C1 Cutouts Fuses KTK-3 Fuses (When Req'd) AL1 Control Power (By Others) Elements Elements Fuses KTK-3 Motor 3Ø C1 3 Phase, 60 HZ Power 31-41, 33-41 31-44, 33-44 C3 2 9 8 10 11 12 Optional Disconnect Switch Built-in Or Field Installed T1T2T3 Cutouts 1 3 7 L1 L2 L3 Warning - First Stage Of Thermostat Must Be Connected To Terminals C1 & C2 To Insure That Motor Will Be Energized With First Stage Heat Operation Stage 2 Fan Relay T1T2T3 Standard Motor Connection BL1 AL1 3 Phase, 60 HZ Power Optional Summer BL3 Fan Switch Built-in Or Field Installed Figure N C3 C2 Motor 3Ø Fuses (When Req'd) BL2 BL3 BL2 Figure M C2 AL2 AL3 C1 Alternate 1 Stage Thermostat (by Others) BL3 BL2 BL1 C2 Stage 1 Stage 2 Fuses (When Req'd) C1 2 Stage Thermostat (By Others) Fused Switch (By Others) L1L2 L3 Customer Wiring Factory Wiring 3 Phase 60 HZ Power 34-00, 35-00, 34-40, 35-40 Figure O AL1 AL2 AL3 BL1 BL2 BL3 3 Phase, 60 HZ Power 3 Phase, 60 HZ Power Figure P 6 RENEWAL PARTS IDENTIFICATION MANUFACTURER PART NUMBER BREAKDOWN FOR MADE TO ORDER UNITS (LOCATED ON UNIT NAMEPLATE) L U H Code Code kW Volts 02-81 2.67 208 02-21 2.67 208/240 02-71 2.67 277 04-81 4 208 04-83 4 208 04-21 3/4 208/240 04-23 3/4 208/240 04-71 4 277 04-43 4 480 05-81 5 208 05-83 5 208 05-21 3.75/5 208/240 05-23 3.75/5 208/240 05-71 5 277 05-43 5 480 07-81 7.5 208 07-83 7.5 208 07-21 5.6/7.5 208/240 07-23 5.6/7.5 208/240 07-71 7.5 277 07-43 7.5 480 10-81 10 208 10-83 10 208 10-21 7.5/10 208/240 10-23 7.5/10 208/240 10-43 10 480 12-83 12.5 208 12-23 9.4/12.5 208/240 12-43 12.5 480 15-83 15 208 15-23 11.2/15 208/240 15-43 15 480 20-23 15/20 208/240 20-43 20 480 25-43 25 480 30-83 30 208 30-23 22.5/30 208/240 30-43 30 480 35-23 26.2/35 208/240 35-43 35 480 40-23 30/40 208/240 40-43 40 480 45-43 45 480 Description Louver Louver spring Cut-Out Case Front Case Back Case Wrapper W/O Fuse Door Case Wrapper With Fuse Door Element Phase Part No. 1 118-303160-001 (2) 1 118-303160-002 (2) 1 118-303160-003 (2) 1 118-303160-001 (3) 3 118-303160-001 (3) 1 118-303160-002 (3) 3 118-303160-002 (3) 1 118-303160-003 (3) 3 118-303160-004 (3) 1 118-303160-005 (3) 3 118-303160-005 (3) 1 118-303160-006 (3) 3 118-303160-006 (3) 1 118-303160-007 (3) 3 118-303160-008 (3) 1 118-303170-005 (3) 3 118-303170-005 (3) 1 118-303170-001 (3) 3 118-303170-001 (3) 1 118-303170-006 (3) 3 118-303170-004 (3) 1 118-303169-001 (3) 3 118-303169-001 (3) 1 118-303169-002 (3) 3 118-303169-002 (3) 3 118-303169-003 (3) 3 118-303169-004 (3) 3 118-303169-005 (3) 3 118-303169-006 (3) 3 118-303169-007 (3) 3 118-303169-008 (3) 3 118-303169-009 (3) 3 118-130419-010 (3) 3 118-130419-011 (3) 3 118-130419-012 (3) 3 118-130384-013 (6) 3 118-130384-014 (6) 3 118-130384-015 (6) 3 118-130384-021 (6) 3 118-130384-016 (6) 3 118-130384-022 (6) 3 118-130384-017 (6) 3 118-130384-018 (6) Motor Part No. 193-302912-001 193-302912-001 193-302120-001 193-302912-001 193-302912-001 193-302912-001 193-302912-001 193-302120-001 193-302912-003 193-302912-001 193-302912-001 193-302912-001 193-302912-001 193-302120-001 193-302912-003 193-302912-004 193-302912-004 193-302912-004 193-302912-004 193-302120-004 193-302912-005 193-302912-004 193-302912-004 193-302912-004 193-302912-004 193-302912-005 193-302912-004 193-302912-004 193-302912-005 193-302912-004 193-302912-004 193-302912-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 193-302120-005 Fan Part No. 112-302997-001 112-302997-001 112-130367-001 112-302997-001 112-302997-001 112-302997-001 112-302997-001 112-130367-001 112-302997-001 112-302997-001 112-302997-001 112-302997-001 112-302997-001 112-130367-001 112-302997-001 112-130367-007 112-130367-007 112-130367-007 112-130367-007 112-130367-007 112-130367-007 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-002 112-130367-003 112-130367-003 112-130367-003 112-130367-004 112-130367-004 112-130367-004 112-130367-004 112-130367-004 112-130367-004 112-130367-004 112-130367-004 2-5kW 182-130329-001 (4) 276-130368-001 (4) 300-049200-001 043-130336-014 043-130379-028 Part Number 7.5-15kW 182-130329-002 (5) 276-130368-001 (5) 300-049200-001 043-130335-011 043-130379-031 20-25kW 182-130329-003 (6) 276-130368-001 (6) 300-049200-001 043-130334-008 043-130379-033 043-130314-005 043-130315-004 043-130316-004 30-45kW 182-130329-003 (6) 276-130368-001 (6) 300-049200-001 043-130334-008 043-130379-033 043-130317-004 043-130317-005 Power Fuses (Used when heater exceeds 48 Amps) Code Description Part No. 45-53 “30-83, 30-23, 35-23, 40-23” “30-83, 35-23, 40-23” 30-23 45-43 Fuse Block 600V Fuse Block 250V Fuse 60 Amp Fuse 50 Amp Fuse 35 Amp 129-025643-001 (2) 129-048473-001 128-026510-007 (6) 128-026510-006 (6) 128-026510-001 (6) For Contactor Rating, refer to Specification Table shown on Page 1. 7 D Description 00-40 Thermostat DP 30-00 Contactor ( 24 V) 30A Contactor ( 24 V) 50A Transformer 30-40 Contactor ( 24 V) 30A Contactor ( 24 V) 50A Transformer Thermostat SP 30-41 Contactor (24V) 30A Contactor (24V) 50A Transformer Thermostat SP Fan Switch 3PDT 30-42 Contactor (24V) 30A Contactor(24V) 50A Transformer Remote Fan Switch 3PDT 30-43 Contactor (24V) 30A Contactor (24V) 50A Transformer Fan Relay Fan Relay Remote Fan Switch 3PDT 30-44 Contactor (24V) 30A Contactor (24V) 50A Transformer Remote Fan Switch 3PDT Thermostat SP 30-45 Contactor (24V) 30A Contactor (24V) 50A Transformer Remote Fan Switch 3PDT Fan Relay Fan Relay Thermostat SP 31-00 Contactor (24V) 30A Contactor (24V) 50A 31-40 Contactor (24V) 30A Contactor (24V) 50A Thermostat SP 31-41 Contactor (24V) 30A Contactor (24V) 50A Thermostat SP Fan Switch 3PDT 31-42 Contactor (24V) 30A Contactor (24V) 50A Remote Fan Switch 3PDT 31-43 Contactor (24V) 30A Contactor (24V) 50A Fan Relay Fan Relay Remote Fan Switch 3PDT 31-44 Contactor (24V) 30A Contactor (24V) 50A Remote Fan Switch 3PDT Thermostat SP 31-45 Contactor (24V) 30A Contactor (24V) 50A Fan Relay Fan Relay Remote Fan Switch 3PDT Thermostat SP 32-00 Contactor (120) 30A Contactor (120) 50A Transformer 32-40 Contactor (120) 30A Contactor (120) 50A Transformer Thermostat SP 32-41 Contactor (120) 30A Contactor (120) 50A Transformer Thermostat SP Fan Switch 3PDT 32-42 Contactor (120) 30A Contactor (120) 50A Transformer Remote Fan Switch 3PDT 32-43 Contactor (120) 30A Contactor (120) 50A Transformer Fan Relay Fan Relay Remote Fan Switch 3PDT 32-44 Contactor (120) 30A Contactor (120) 50A Transformer Remote Fan Switch Thermostat SP Heater Line Volts All All All All All All All All All All All All All All All All All All All All 2.6-5kW 7.5-45kW All All All All All All All All All All 2.6-5kW 7.5-45kW All All All All All All All All All All All All All All All 2.6-5kW 7.5-45kW All All All All All All All All 7.5-45kW All All All All All All All All All All All All All All All All All All All All All 2.6-5kW 7.5-45kW All All All All All All Part No. 300-049197-004 072-303180-001 072-303180-002 315-304252-002 072-303180-001 072-303180-002 315-304252-002 300-049197-003 072-303180-001 072-303180-002 315-304252-002 300-049197-003 292-057673-001 072-303180-001 072-303180-002 315-304252-002 292-057673-001 072-303180-001 072-303180-002 315-304252-002 072-303180-011 072-303180-001 292-057673-001 072-303180-001 072-303180-002 315-304252-002 292-057673-001 300-049197-003 072-303180-001 072-303180-002 315-304252-002 292-057673-001 072-303180-011 072-303180-001 300-049197-003 072-303180-001 072-303180-002 072-303180-001 072-303180-002 300-049197-003 072-303180-001 072-303180-002 300-049197-003 292-057673-001 072-303180-001 072-303180-002 292-057673-001 072-303180-001 072-303180-002 072-303180-011 072-303180-001 292-057673-001 072-303180-001 072-303180-002 292-057673-001 300-049197-003 072-303180-001 072-303180-002 072-303180-001 072-303180-011 292-057673-001 300-049197-003 072-303180-007 072-303180-008 315-304252-001 072-303180-007 072-303180-008 315-304252-001 300-049197-003 072-303180-007 072-303180-008 315-304252-001 300-049197-003 292-057673-001 072-303180-007 072-303180-008 315-304252-001 292-057673-001 072-303180-007 072-303180-008 315-304252-001 072-303180-011 072-303180-001 292-057673-001 072-303180-007 072-303180-008 315-304252-001 292-057673-001 300-049197-003 Wiring Figure A, J, S A, J B, K B, K C, L, T B, K C, L D, M, U D, M E, N E, N, V F, O, R E, N F, O A, J, S A, J B, K B, K C, L, T B, K Code Description 32-45 Contactor (120) 30A Contactor (120) 50A Transformer Fan Relay Fan Relay Remote Fan Switch 3PDT Thermostat SP 33-00 Contactor (120) 30A Contactor (120) 50A 33-40 Contactor (120) 30A Contactor (120) 50A Thermostat SP 33-41 Contactor (120) 30A Contactor (120) 50A Fan Switch 3PDT Thermostat SP 33-42 Contactor (120) 30A Contactor (120) 50A Remote Fan Switch 3PDT 33-43 Contactor (120) 30A Contactor (120) 50A Fan Relay Fan Relay (120V) Remote Fan Switch 3PDT 33-44 Contactor (120) 30A Contactor (120) 50A Remote Fan Switch 3PDT Thermostat SP 33-45 Contactor (120) 30A Contactor (120) 50A Fan Relay Fan Relay Remote Fan Switch 3PDT Thermostat SP 34-00 Contactor (208/240) 30A Contactor (208/240) 50A 34-40 Contactor (208/240) 30A Contactor (208/240) 50A Thermostat SP 34-41 Contactor (208/240) 30A Contactor (208/240) 50A Fan Switch 3PDT Thermostat SP 34-42 Contactor (208/240) 30A Contactor (208/240) 50A Remote Fan Switch 3PDT 34-43 Contactor (208/240) 30A Contactor (208/240) 50A Fan Relay Remote Fan Switch 3PDT 34-44 Contactor (208/240) 30A Contactor (208/240) 50A Remote Fan Switch 3PDT Thermostat SP 34-45 Contactor (208/240) 30A Contactor (208/240) 50A Fan Relay Remote Fan Switch 3PDT Thermostat SP 35-00 Contactor (277) 30A Contactor (277) 50A 35-40 Contactor (277) 30A Contactor (277) 50A Thermostat SP 35-41 Contactor (277) 30A Contactor (277) 50A Fan Switch 3PDT Thermostat SP 35-42 Contactor (277) 30A Contactor (277) 50A Remote Fan Switch 3PDT 35-43 Contactor (277) 30A Contactor (277) 50A Fan Relay Remote Fan Switch 3PDT 35-44 Contactor (277) 30A Contactor (277) 50A Remote Fan Switch 3PDT Thermostat SP 35-45 Contactor (277) 30A Contactor (277) 50A Fan Relay Remote Fan Switch 3PDT Thermostat SP Heater Line Volts Part No. All All All 2.6-5kW 7.5-45kW All All All All All All All All All All All All All All All All 2.6-5kW 7.5-45kW All All All All All All All 2.6-5kW 7.5-45kW All All 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 277 072-303180-007 072-303180-008 315-304252-001 072-303180-011 072-303180-007 292-057673-001 300-049197-003 072-303180-007 072-303180-008 072-303180-007 072-303180-008 300-049197-003 072-303180-007 072-303180-008 292-057673-001 300-049197-003 072-303180-007 072-303180-007 292-057673-001 072-303180-007 072-303180-008 072-303180-011 072-303180-007 292-057673-001 072-303180-007 072-303180-007 292-057673-001 300-049197-003 072-303180-007 072-303180-008 072-303180-011 072-303180-007 292-057673-001 300-049197-003 072-303180-013 072-303180-014 072-303180-013 072-303180-014 300-049197-003 072-303180-013 072-303180-014 292-057673-001 300-049197-003 072-303180-013 072-303180-014 292-057673-001 072-303180-013 072-303180-014 072-303180-013 292-057673-001 072-303180-013 072-303180-014 292-057673-001 300-049197-003 072-303180-013 072-303180-014 072-303180-013 292-057673-001 300-049197-003 072-303180-019 072-303180-020 072-303180-019 072-303180-020 300-049197-003 072-303180-019 072-303180-020 292-057673-001 300-049197-003 072-303180-019 072-303180-020 292-057673-001 072-303180-019 072-303180-020 072-303180-019 292-057673-001 072-303180-019 072-303180-020 292-057673-001 300-049197-003 072-303180-019 072-303180-020 072-303180-019 292-057673-001 300-049197-003 Wiring Figure Code 1 2 3 C, L Disconnect Rating 40A 80A 100A Disconnect Part No. 292-303472-001 292-303472-002 292-303472-003 D, M, U D, M Miscellaneous Parts Thermostat Knob 169-049278-001 Mod. Decal Card 170-303678-001 E, N E, N, V F, O, R E, N Instruction Sheets 1. Internal Thermostat 2. Internal/External Summer Fan Switch 3. Internal/External Summer Fan Switch with Relay 4. Disconnect Switch F, O G, P G, P H, Q H, Q I, R, V H, Q I, R, V G G H H I H I Note: Number in parentheses () in the Part Number Column indicates the quantity of that part required. 8 PF-448 PF-480 PF-481 PF-482 WIRING DIAGRAMS C2 Elements Elements Field Wiring Built-in Or Field Installed Factory Wiring Motor 3Ø Stage 2 Stage 1 C1 Cutouts To Elements Stage 1 Motor 3Ø To Elements Stage 2 AL2 C2 Fuses (When Req'd) AL3 AL1 T1 T2 T3 C2 Motor 3Ø 9 8 10 11 12 C1 AL2 AL3 Optional Disconnect Switch Built-in Or Field Installed MOTOR 3Ø Elements C2 Stage 1 Contactor Cutouts Stage 1 Stage 2 T1T2T3 T1T2T3 Contactors C1 H2 H1 H2 BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 480 BLK BLK/RED BLK WHT YEL BLU X1 X2 X1 RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 480 BLK BLK/RED BLK WHT YEL BLU X1 X1 X2 X2 BL1 Stage 2 L1L2 L3 Thermostat W/sub-base (By Others) 3 Phase 60 Hz Power 32-00 30-00 Heat 3 4 2 Motor 3Ø Stage 2 Stage 1 T1 T2 T1 T2 T3 C2 Contactors C1 Field Installed Built-in Or Field Installed Factory Wiring AL2 AL3 Elements Stage 1 T1 T2 Cutouts C1 Heat Fan 2 Stage Thermostat (By Others) Thermostat Thermostat W/sub-base (By Others) AL2 AL3 3 Phase, 60 HZ Power 31-00 33-00 Heat 3 4 Elements Warning - First Stage Of Thermostat Must Be Connected To Terminals C1 & C2 To Insure That Motor Will Be Energized With First Stage Heat Operation Elements Stage 1 Fan Relay C3 T1T2 T3 C1 C3 C1 Heat Fan 2 PDT Switch (By Others) Thermostat Jumper Fan 1 C1 C4 C2 C3 C2 AL2 AL3 Fuses KTK-3 Fuses (When Req'd) BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 480 BLK BLK/RED BLK WHT YEL BLU BL3 BL2 Stage 2 C3 X2 2 PDT Switch (By Others) 3 Phase 60 HZ Power 4 Heat 3 2 Fan 1 Disconnect Switch Built-in Or Field Installed 30-45 32-45 Figure X Figure W 9 AL2 AL3 BL1 AL1 C1 C4 C2 C3 C2 Fuses KTK-3 Fuses (When Req'd) Jumper Thermostat Jumpers Thermostat W/sub-base (By Others) Contactor (Typ.) Motor 3Ø H2 Alternate Customer Hook Up (1 Stage) Optional Disconnect L1 L2 L3 Switch Built-in Or Field Installed C1 XFMR H1 T1T2T3 T1 T2T3 C1 2 Stage Thermostat (By Others) Control Power (By Others) 31-45 33-45 X1 Heat Fan Stage 2 C3 Cutouts Stage 1 Elements Stage 1 C4 C2 Warning - First Stage Of Thermostat Must Be Connected To Terminals C1 & C2 To Insure That Motor Will Be Energized With First Stage Heat Operation BL1 AL1 Alternate Customer Hook Up (1 Stage) Jumpers Contactor (Typ.) 208 Transformer Color Code Index T3 Motor 3Ø Stage 2 2 Stage Thermostat (By Others) Stage 2 T1T2 Field Installed Built-in Or Field Installed Elements Factory Wiring 24V SEC. PRI. XFMR 120V SEC. PRI. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. X1 X2 H2 X1 X2 H1 C4 Cutouts Stage 1 L1 L2 L3 3 Phase 60 HZ Power 34-43 35-43 Figure V Figure U C2 BL3 BL2 BL1 Optional Disconnect Switch Built-in Or Field Installed C1 C4 C2 C3 Fan 1 T3 C2 Fuses KTK-3 Fuses (When Req'd) AL1 Jumper 2 Contactor (Typ.) Motor 3Ø 2 PDT Switch (By Others) Jumpers L1 L2 L3 T1T2 C3 Stage 2 BL1 Optional Disconnect Switch Built-in Or Field Installed Stage 2 T3 C1 C2 BL3 BL2 Elements Fan Relay C4 Alternate Customer Hook Up (1 Stage) Field Installed Built-in Or Field Installed Factory Wiring L1 L2 L3 3 Phase 60 HZ Power 30-43 32-43 T3 Fuses (When Req'd) AL1 Field Installed Built-in Or Field Installed Factory Wiring BL1 Disconnect Switch Built-in Or Field Installed C2 Stage 1 Control Power (By Others) 2 Stage Thermostat (By Others) BL3 BL2 C3 Cutouts C1 Stage 2 Heat 3 AL2 AL3 Fuses KTK-3 Fuses (When Req'd) AL1 C1 C4 C2 C3 Fan 1 C2 Motor 3Ø XFMR Warning - First Stage Of Thermostat Must Be Connected To Terminals C1 & C2 To Insure That Motor Will Be Energized With First Stage Heat Operation Elements Elements C3 4 H2 Contactor (Typ.) Figure T Fuses KTK-3 2 H1 Jumper Jumpers Note: For Single Stage Thermostat, See Fig. M Thermostat W/sub-base (By Others) X2 2 PDT Switch (By Others) Thermostat Disconnect Switch Built-in Or Field Installed Warning - First Stage Of Thermostat Must Be Connected To Terminals C1 & C2 To Insure That Motor Will Be Energized With First Stage Heat Operation Fan X1 C3 C1 Heat Fan T1T2T3 T1 T2T3 C1 Alternate Customer Hook Up (1 Stage) X2 Stage 2 C3 Cutouts Stage 1 Elements Stage 1 C4 C2 Figure S Stage 1 Field Installed Built-in Or Field Installed Elements Factory Wiring 2 Stage Thermostat (By Others) BL2 AL1 24V SEC. PRI. XFMR 120V SEC. PRI. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. 208 H2 BLK Warning - First Stage Of Thermostat Must Be Connected To Terminals C1 & C2 To Insure That Motor Will Be Energized With First Stage Heat Operation BL3 AL2 AL3 2 Stage Thermostat (By Others) Transformer Color Code Index H1 208 C2 Fuses KTK-3 Fuses (When Req'd) XFMR H1 3 Phase 60 HZ Power 34-43, 35-43 34-45, 35-45 Transformer Color Code Index X2 Fan Stage 2 L1L2 L3 Not For Use With 480V 24V SEC. PRI. XFMR 120V SEC. PRI. VOLT. LEAD CLRS. LEAD CLRS. LEAD CLRS. Elements C3 Note: For Single Stage Thermostat, See Fig. J BL1 Optional Disconnect Switch Built-in Or Field Installed Field Installed Built-in Or Field Installed Factory Wiring BL3 BL2 Figure R Field Installed Built-in Or Field Installed Factory Wiring X1 Fuses KTK-3 Fuses (When Req'd) AL1 Summer Fan Switch 3 Phase, 60 HZ Power C1 C2 C3 Cutouts Figure Q Warning - First Stage Of Thermostat Must Be Connected To Terminals C1 & C2 To Insure That Motor Will Be Energized With First Stage Heat Operation T1T2T3 Contactor C1 2 1 3 7 Optional Summer Fan Switch BL3 Built-in Or Field Installed BL2 L1 L2 L3 34-41 34-42 34-44 Standard Motor Connection Contactor Stage 2 Fan Relay T1T2T3 Standard Motor Connection BL1 Note: Heater Requires Fan Relay For 480V Motors (See Fig. R) T3 T1 T2 C1 Elements C3 C2 Motor 3Ø 1 2 3 7 9 8 10 11 12 T1 T2 T3 Contactor (Typ.) C2 Stage 1 Fuses KTK-3 Optional Thermostat Built-in Or Field Installed T1 T2 T3 Contactor Elements Optional Thermostat Built-in Or Field Installed T1T2T3 T1T2T3 C1 L1 L2 L3 3 Phase 60 HZ Power BL3 BL2 Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx. 2150 N. RULON WHITE BLVD., OGDEN, UT 84404 Phone: 1-800-368-2493 www.chromalox.com