Download INSTALLATION/OPERATING INSTRUCTIONS

THIRD STEP: WIRE THE TERMINALS
Wiring the Power
Terminal #1 is for earth ground. It must be connected. Terminal #2 is for line voltage and #3 is for neutral.
Wiring the SUPPLY PUMP OR VALVE and BURNER (Without SEQ panel)
First check the typical application drawings (pgs. 5-8) to determine which outputs should be connected for your application. Terminals #7 and #8 are normally open and should be wired in series with the limit circuit of the burner. If connecting to a supply pump, wire Terminals #4 and #5 to the pump starter. If connecting to a valve, Terminal #5 is common,
Terminal #4 is open, and Terminal #6 is close.
NOTE: Terminals #4 through #8 are all controlled by the BURNER RELAY. They are DRY CONTACTS only. When the
BURNER RELAY closes, #4 and #5 will close, as will #7 and #8. The normally closed contacts #5 and #6 will open. The
relay is rated for 6A at 120VAC.
Wiring the SLAB PUMP
Wire Terminals #9 and #10 to the slab pump starter.
NOTE: Terminals #9, #10, and #11 provide a normally open and normally closed output. They are DRY CONTACTS ONLY.
These are controlled by the SLAB PUMP RELAY. The relay is rated for 6A at 120VAC.
Wiring the SLAB VALVE (Without SEQ panel)
Terminals #14, #15, and #16 provide floating control for the slab temperature control valve. This output can modulate
either a 2-way or a 3-way control valve (see pgs. 5-8 for typical applications).
NOTE: These connections are controlled by the SLAB VALVE CLOSE and the SLAB VALVE OPEN RELAYS. They are
DRY CONTACTS ONLY. The relays are rated for 6A at 120VAC.
Wiring to a SEQ panel (SEQ6, SEQ6P or SEQ12)
SMC Output Terminal
14
15
4
5
16
Connect To
SEQ Input Terminal
1
2
5
6
7
Wiring the ALARM
Terminals #12 and #13 are normally open contacts to run an alarm if the slab does not get heat, if the slab does not reach
temperature in 24 hours, or if there is a fault in a sensor.
NOTE: These contacts are controlled by the ALARM RELAY. They are DRY CONTACTS ONLY. The relay is rated for
6A at 120VAC.
Wiring Guidelines
Bring wires through “knock-out” holes at the bottom of the enclosure. Do not attempt to bring wires in from the sides or
top - this will interfere with the servicing of the control. Use electrical connectors such as you use with any junction box.
Copper wire is specifically required by UL. Make sure the 120V line has a circuit breaker of its own.
Caution: Choose a 120V power source with nothing else on the line. Do not put the control on the same line with the
boiler power or other switches. This could result in the control being disconnected. The amount of current switched by
the output relays must not exceed 1 amp inductive, 6 amps resistive at 120V. Comply with local codes, inserting
external over-current protection. Make sure suitable branch circuit protection is provided.
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