Download Installation Instructions

Installation Instructions
®
Rheem Continuous Flow
Gas Water Heaters
This EZ-Link system must be installed and serviced by a qualified person.
Please leave this guide with the householder.
Warning: Upon completion of the installation and commissioning of the
water heater, leave this guide with the householder or a responsible officer.
DO NOT leave this guide inside of the cover of the water heater, as it may
interfere with the safe operation of the water heater or ignite when the water
heater is turned on.
Notice to Victorian Customers from the
Victorian Plumbing Industry Commission.
This water heater must be installed by a licensed person as required
by the Victorian Building Act 1993.
Only a licensed person will give you a Compliance Certificate, showing that
the work complies with all the relevant Standards. Only a licensed person will
have insurance protecting their workmanship for 6 years. Make sure you use
a licensed person to install this water heater and ask for your Compliance
Certificate.
RHEEM AUSTRALIA PTY LTD - ABN 21 098 823 511
1 Alan Street (PO Box 6) Rydalmere NSW 2116 Australia
PATENTS
This system may be protected by one or more patents or registered designs
in the name of Rheem Australia Pty Ltd or Paloma Industries Ltd.
®
TRADEMARKS
Registered trademark of Rheem Australia Pty Ltd.
™ Trademark of Rheem Australia Pty Ltd.
Note: Every care has been taken to ensure accuracy in preparation of this publication.
No liability can be accepted for any consequences,
which may arise as a result of its application.
CONTENTS
EZ-Link System ............................................................................ 3
Dual Installation ........................................................................... 6
Labels ........................................................................................... 7
Temperature Controller ............................................................... 7
Ez-Link Cable Connection .......................................................... 9
Typical Two Unit Manifold with Ez-Link Connection ............. 18
3
EZ-LINK SYSTEM
EZ-Link System
The EZ-Link™ system is designed to electronically control two continuous flow
gas water heaters and have them operate as one. One or both water heaters
may be in operation, depending upon the hot water demand. The second water
heater will only operate when the hot water demand exceeds the capacity of
the first water heater to supply.
The EZ-Link system is suitable for installation with Rheem® indoor 862, 864,
866 and outdoor 872, 874, and 876 series and Edwards® indoor 362 and
outdoor 372 series continuous flow gas water heaters.
DO NOT
OPERATE THIS APPLIANCE BEFORE
READING THE INSTRUCTION
BOOKLET.
DO NOT
PLACE ARTICLES ON OR AGAINST
THIS APPLIANCE.
DO NOT
STORE CHEMICALS OR FLAMMABLE
MATERIALS, OR SPRAY AEROSOLS
NEAR THIS APPLIANCE.
DO NOT
OPERATE WITH PANELS, COVERS
OR GUARDS REMOVED FROM THIS
APPLIANCE.
DO NOT
ENCLOSE THIS APPLANCE.
Ez-Link cable x 1
CERTIFIED FOR OUTDOOR INSTALLATION ONLY
To operate the water heater
Open the inlet water and gas valves fully
Plug appliance into mains power outlet and switch on
Turn on remote temperature controller(s) if fitted
Open a hot tap - the heater will operate automatically
To shut down the water heater
Close the inlet water and gas valves fully
Turn off remote temperature controller(s) if fitted
If power will be disconnected, refer to the owners guide
regarding draining the appliance to avoid damage due to
freezing
cable clamps
x2
N199
AS 3498
WMKA21434
121109 AD
screws x 2
warning label x 1
(121109)
AGA label x 1
(121901)
Warning Label x 1 (121109)
Ez-Link Cable x 1
Kit
– PN
290141 x 1 (121901)
AGA
Label
Cable Clamp Ez-Link
x2
+ Installation Instruction x 1 (122139)
Screw
x2
EZ-LINK KIT (290141)
4
EZ-LINK SYSTEM
Notes:
Only two continuous flow gas water heaters can be installed with an Ez-Link
system.
The Ez-Link system will vary the start up sequence of the two water
heaters.
The two continuous flow water heaters must be of the same model. The
performance of two different model water heaters manifolded together
cannot be guaranteed.
A temperature controller is required to be installed with the EZ-Link system,
except for Rheem 612 to 627 and E16 models or Edwards 627 model water
heaters. The controller can be either a standard or Deluxe controller. If a
temperature controller is not installed, on other than a Rheem 612 to 627 or
E16 models or an Edwards 627 model, neither water heater will operate.
A temperature controller(s) may be installed with the EZ-Link system on a
Rheem 612 to 627 or E16 model or Edwards 627 model dual installation.
The controller can be either a standard or Deluxe controller.
If the Ez-Link system is used with a model water heater with a preset outlet
temperature greater than 60°C, the maximum outlet temperature of the
water heater will be limited by the maximum temperature setting of the
temperature controller, if one is installed.
Two Rheem 612 to 627 or E16 models or two Edwards 627 model water
heaters manifolded together with an Ez-Link system installed can be used
as an in-series gas booster system to a solar water heater installation so
long as a temperature controller is not installed.
Warning: Two continuous flow water heaters manifolded together with an
Ez-Link system installed cannot be used as an in-series gas booster system to
a solar water heater installation if a temperature controller is installed.
Temperature controllers must not be fitted to a water heater as part of a solar
water heater system because water at a temperature much higher than the
controller setting can be delivered.
5
EZ-LINK SYSTEM
Dual Installation
The two continuous flow water heaters can be installed side by side with
minimal clearance between them. The AGA has approved the installation of
two water heaters with an exemption from the 300 mm minimum clearance
requirements between flue terminals, as stated in AS/NZS 5601, clause
5.13.6.5 and AS/NZS 5601.1, clause 6.9.3.
Install two continuous flow water heaters of the same model in a parallel
plumbing arrangement. It is good practice, but not essential, to install the two
water heaters in an Equa-Flow® plumbing arrangement. The installation must
be in accordance with the Owner‟s Guide and Installation Instructions supplied
with the water heater.
1.
The pipe work must be sized to meet the requirements of both
AS/NZS 3500.4 and the application. It is recommended to use minimum
DN25 pipe for the cold water line, cold and hot headers and hot water line
and DN20 for the cold and hot water branch lines of each water heater.
2.
A full flow gate valve or ball valve must be installed on the cold water line
to the system. A non return valve or stop tap must not be installed.
3.
A full flow gate valve or ball valve (not a stop tap) should be installed on
both the cold water branch and hot water branch of each water heater.
4.
An isolation valve must be installed on the gas branch of each water
heater.
5.
Non return valves or pressure limiting valves must not be installed on the
branch lines to the water heaters.
6.
All fittings, valves and branch lines should be matched sets to each of the
water heaters.
7.
Sufficient space must be left to enable access, servicing or removal of
either water heater.
Refer to the „Typical Two Unit Manifold with Ez-Link Connection‟ diagrams for
the:
874, 876 series M16, 018, 020 models on page 18, or
874, 876 series 612, E16, 618, 620 models on page 18, or
372, 872, 874, 876 series 024, 027 models on page 19, or
372, 872, 874, 876 series 627 models on page 19, or
362, 862, 864, 866 series 027 models on page 20, or
362, 862, 864, 866 series 627 models on page 21.
6
EZ-LINK SYSTEM
Labels
A warning label (121109) and an AGA approval
label (121901) are supplied in the Ez-Link kit.
Where the two water heaters are installed close
together and the warning label and AGA
approval label on the inside face of the right
hand water heater cannot be read, it is
necessary to adhere the two labels supplied to
the right-hand face of the water heater.
1.
Place the warning label below the rating
label.
2.
Place the AGA approval label beside the
barcode label.
DO NOT
OPERATE THIS APPLIANCE BEFORE
READING THE INSTRUCTION
BOOKLET.
DO NOT
PLACE ARTICLES ON OR AGAINST
THIS APPLIANCE.
DO NOT
STORE CHEMICALS OR FLAMMABLE
MATERIALS, OR SPRAY AEROSOLS
NEAR THIS APPLIANCE.
DO NOT
OPERATE WITH PANELS, COVERS
OR GUARDS REMOVED FROM THIS
APPLIANCE.
DO NOT
ENCLOSE THIS APPLANCE.
CERTIFIED FOR OUTDOOR INSTALLATION ONLY
Refer to the „Label Positioning‟ diagram on
page 7 for the position of the two labels to be
adhered to the water heater.
A second rating label is attached to the inside
of the front cover. This can be referenced to
determine details of the left hand water heater.
To operate the water heater
Open the inlet water and gas valves fully
Plug appliance into mains power outlet and switch on
Turn on remote temperature controller(s) if fitted
Open a hot tap - the heater will operate automatically
To shut down the water heater
Close the inlet water and gas valves fully
Turn off remote temperature controller(s) if fitted
If power will be disconnected, refer to the owners guide
regarding draining the appliance to avoid damage due to
freezing
N199
AS 3498
WMKA21434
121109 AD
Label Positioning
Temperature Controller
A temperature controller is required to be installed with the EZ-Link system
except for Rheem 612 to 627 or E16 model or Edwards 627 model water
heaters. The controller can be either a standard or Deluxe controller. If a
temperature controller is not installed, on other than a Rheem 612 to 627 or
E16 model or Edwards 627 model, neither water heater will operate. Rheem
612 to 627 or E16 model or Edwards 627 model water heaters do not require a
temperature controller to be installed as part of an Ez-link system installation
Connect a temperature controller to one only of the two water heaters. Up to
three temperature controllers of the same family can be installed to this water
heater. Refer to “Installation – Controllers” in the Owner‟s Guide and
Installation Instructions supplied with the water heater, for the rules applying to
the installation of temperature controllers and for details on connecting a
controller to the water heater.
The water heater connected with the temperature controller(s) will become the
“master” water heater. The installed temperature controller(s) will control the
temperature and functionality of both water heaters.
The maximum outlet temperature of the water heaters will be limited by the
maximum temperature setting of the temperature controller.
7
EZ-LINK SYSTEM
Notes:
A Kitchen controller only should be installed on other than a Rheem 612 to
627 or E16 model or Edwards 627 model if two continuous flow gas water
heaters have been Ez-Linked together and they are part of a circulated hot
water flow and return system in a building.
The Kitchen controller should be left set at 60°C and left on during the
periods the circulator may operate.
Water should not be circulated from a water heater with a temperature
setting of less than 60°C.
A temperature controller should not be installed if two Rheem 612 to 627 or
E16 models or two Edwards 627 model water heaters have been Ez-Linked
together and they are part of a circulated hot water flow and return system
in a building.
The preset outlet temperature setting of the water heaters must be set to at
least 60°C if installed as part of a circulated hot water flow and return
system in a building.
Water should not be circulated from a water heater with a temperature
setting of less than 60°C.
Refer to the Owner‟s Guide and Installation Instructions supplied with the
water heater for further information on installing a water heater as part of a
circulated hot water flow and return system in a building.
Warning: Two continuous flow water heaters manifolded together with an
Ez-Link system installed cannot be used as an inline gas booster system to a
solar water heater installation if a temperature controller is installed.
Temperature controllers must not be fitted to a water heater as part of a solar
water heater system because water at a temperature much higher than the
controller setting can be delivered.
8
EZ-LINK SYSTEM
Ez-Link Cable Connection
The references in steps 5 to 8 are to the:
„Control Board M16, 018, 020 models with Ez-Link Connection‟ diagram on
page 14, and
„Control Board 612, E16, 618, 620 models with Ez-Link Connection‟
diagram on page 15, and
„Control Board 024, 027 models with Ez-Link Connection‟ diagram on
page 16, and
„Control Board 627 models with Ez-Link Connection‟ diagram on page 17.
To connect the Ez-Link cable to the water heaters:
1.
Close any hot taps and ensure the burners on both water heaters are not
operating.
2.
Switch off the electrical supply at the power outlet to each water heater.
3.
Remove the screws holding the front panel to the jacket on each water
heater.
4.
Gently disengage the front panel and pull forward to remove from each
water heater.
5.
Connect one end of the EZ-Link cable to the first water heater.

Draw the cable through the cable grommet on the underside of the
water heater.

Plug the cable into the four pin connector:

E16, M16, 018, 020, 612, 618, 620 models – marked “E” in the
upper right-hand corner of the Control Board.
Refer to the Control Board diagram for M16, 018, 020 models
and the Control Board diagram for 612, E16, 618, 620 models.

024, 027, 627 models – located immediately below the MIN
button, toward the upper right hand corner of the Control Board.
Refer to the Control Board diagram for 024, 027 models and the
Control Board diagram for 627 models.
The connector will only fit one way.

Press until the connector snaps into place.
9
EZ-LINK SYSTEM

Secure the EZ-Link cable with the clamp and screw provided, to:

E16, M16, 018, 020, 612, 618, 620 models – the bottom right of
the Control Board.
Refer to the Control Board diagram for M16, 018, 020 models
and the Control Board diagram for 612, E16, 618, 620 models.

024, 027, 627 models – the top right of the Control Board.
Refer to the Control Board diagram for 024, 027 models and the
Control Board diagram for 627 models.
6.
All Models – With or Without a Controller Connected: Switch DIP
SWITCH 4 to the on (up) position on the first water heater.
Note: This dip switch is on the DIP 1 set of dip switches on the 024, 027
and 627 models.
Note: If a controller is connected to one of the water heaters, then this is
the „first‟ water heater.
Refer to the:
Control Board diagram for M16, 018, 020 models, or
Control Board diagram for 612, E16, 618, 620 models, or
Control Board diagram for 024, 027 models, or
Control Board diagram for 627 models.


612, E16, 618, 620 Models – Without a Controller Connected: If a
temperature controller is not installed on the 612, E16, 618,
620 models, then also switch DIP SWITCH 3 to the on (up) position
on the first water heater.
627 Models – Without a Controller Connected: If a temperature
controller is not installed on the 627 models, then also switch DIP
SWITCH 1 of the DIP 2 set of dip switches to the on (up) position on
the first water heater.
10
EZ-LINK SYSTEM
7.
Connect the other end of the EZ-Link cable to the second water heater.

Draw the cable through the cable grommet on the underside of the
water heater.

Plug the cable into the four pin connector:

E16, M16, 018, 020, 612, 618, 620 models – marked “E” in the
upper right-hand corner of the Control Board.
Refer to the Control Board diagram for M16, 018, 020 models
and the Control Board diagram for 612, E16, 618, 620 models.

024, 027, 627 models – located immediately below the MIN
button, toward the upper right hand corner of the Control Board.
Refer to the Control Board diagram for 024, 027 models and the
Control Board diagram for 627 models.
The connector will only fit one way.

Press until the connector snaps into place.

Secure the EZ-Link cable with the clamp and screw provided, to:

E16, M16, 018, 020, 612, 618, 620 models – the bottom right of
the Control Board.
Refer to the Control Board diagram for M16, 018, 020 models
and the Control Board diagram for 612, E16, 618, 620 models.

024, 027, 627 models – the top right of the Control Board.
Refer to the Control Board diagram for 024, 027 models and the
Control Board diagram for 627 models.
8.
All Models – With or Without a Controller Connected: Switch DIP
SWITCH 4 to the on (up) position on the second water heater. Refer to
the:
Control Board diagram for M16, 018, 020 models, or
Control Board diagram for 612, E16, 618, 620 models, or
Control Board diagram for 024, 027 models, or
Control Board diagram for 627 models.
Note: This dip switch is on the DIP 1 set of dip switches on the 024, 027,
and 627 models.
11
1 2 3 4
11 22 33 44
DIP1
ON
Water Heater no.2
No4Temperature Controller(s)
1 2 3 4
ON
SK6668-46
REV_AD 2/12
Water Heater no.2
OFF
Water Heater no.1
4
3
1 2 3 4
DIP2
ON
OFF
1 2 3 4
ON
ON
DIP SWITCHES - EZ LINK INSTALLATION
FLOW WATER HEATER
4
3CONTINUOUS
2
86,87 SERIES, 627 MODELS1
2
4
3
1 2
ON
DIP1
1 2 3 4
OFF
ON
DIP2
OFF
ON
3
1 2
ON
ON
OFF
Water Heater no.1
ON
OFF
ON
ON
dip switch settings
E16, M16, 018, 020, 612, 618, 620 models
with
controller connected
3 4
1 2 3 4
1 2 a temperature
ON
4
3
2 3 4
1 ON
1 2
1
DIP2
Water
Heater
no.2
Water
Heater
no.2
Temperature
Controller(s)
Connected
Temperature
Controller(s)
Connected
OFF
DIP1
DIP1
DIP2
Water
Heater
no.1
Water
Heater
no.1
(with
controller(s)
connected)
(with
controller(s)
connected)
ON
OFF ON
ON
OFF ON
OFF
2 3 4
11 22 3 33 4 44
1 2
1
OFF
333 444
1 22 33 44
2 22
ON
ON
ON
DIP1
DIP1
DIP2
4
3
2
11
4
1 2 3 4
ON
ON
ON
1
3
2
1
Temperature Controller(s) Connected
OF
Water Heater no.2
ON
OFF ON
OFF
ON
OFF
DIP1
DIP1
DIP2
EZ-LINK SYSTEM
4
3
2
1
OF
Water Heater no.1
(with controller(s) connected)
No Temperature Controller(s)
4 switch settings
3 dip
1 2 3 4
E16,
612,
618,
620
models
4
3
1 2 3 4
1 2DIP SWITCHES - EZ LINK INSTALLATION
without
a temperature
controller
Water
Heater
no.1
Water Heater no.2
CONTINUOUS
FLOW WATER HEATER
2
1
DIP1
4
3
2
1
1 2 3 4
ON
ON
OFF
4
3
2
DIP2
ON
ON
1
SK6668-46
REV_AD 2/12
1 2 3 4
OFF
DIP2
1 2 3 4
4
3
2
1
OFF
4
3
2
1
ON
ON
DIP SWITCHES - EZ LINK INSTALLATION
ON
CONTINUOUS FLOW WATER HEATER
86,87 SERIES, 627 MODELS
ON
OFF
DIP1
87 SERIES, 612 - 620 MODELS
No Temperature Controller(s)
1 2 3 4
Water Heater no.1
(with controller(s) connected)
Water Heater no.2
2
3
4
12
1
2
3
ON
4
OFF
1
DIP1
ON
dip switch settings
024, 027, 627 models
with a temperature controller connected
ON
ON
OFF
DIP1
Temperature Controller(s) Connected
Water Heater no.1
(with controller(s) connected)
Water Heater no.2
EZ-LINK SYSTEM
4
1 2 3 4
1
3
4
ON
4
ON
DIP2
ON
2
3
1 2 3 4
OFF
DIP2
ON
2
1
OFF
3
ON
2
ON
1
2
3
4
OFF
1
DIP1
ON
ON
OFF
DIP1
Temperature Controller(s) Connected
1 2 3 4
1 2 3 4
Water Heater no.1
Water Heater no.2
No Temperature Controller(s)
dip switch settings
627 models
DIP SWITCHES - EZ LINK INSTALLATION
without
a temperature
controller
CONTINUOUS
FLOW WATER
HEATER
86,87 SERIES, 627 MODELS
9.
Refit the front panel and screws to each water heater.
SK6668-46
REV_AD 2/12
10. Check the main gas isolation valve and the isolation valves at the gas inlet
to each water heater are fully open.
11. Switch on the electrical supply at the power outlet to the water heater.
12. Turn on the controller by pressing the on / off button, if one is installed.
13. Open a hot tap.
The first water heater and depending upon the flow from the hot tap, the
second water heater will operate automatically.
14. Increase the hot water flow by turning on an additional hot tap(s).
Check to ensure the flow from each connected hot tap is sufficient to
operate both water heaters.
The minimum operating flow rate for each E16, M16, 018, 020, 612, 618
and 620 model water heater is 2.5 litres per minute and for each 024, 027
and 627 model water heater is 2.0 litres per minute.
15. Turn off the hot taps.
Refer to the “Commissioning” section in the Owner‟s Guide and Installation
Instructions supplied with the water heater for details on completing the
installation.
13
EZ-LINK SYSTEM
Controller Cable
(one water heater only)
SW2
1
2
3
4
1 2 3 4
E
REMOTE
CONTROLLER
TERMINAL
ON
ON
OFF
DIP1
SW1
ON
ON
1
2
3
4
1 2 3 4
E
Secure
cable
with cable
clamp &
screw
OFF
DIP1
Ez-Link
Cable
Both Water Heaters
Dip Switch 4
in the on (up) position
Control Board M16, 018, 020 models with Ez-Link Connection
Ez-Link Cable Connection
874, 876 SERIES 012 - 020 MODELS
14
EZ-LINK SYSTEM
Optional Controller Cables
(first water heater only)
SW2
2
3
4
1 2 3 4
E
Ez-Link
Cable
OFF
DIP1
ON
1
REMOTE
CONTROLLER
TERMINAL
ON
SW1
DIP SWITCH SETTINGS
1st WATER HEATER
ON
1
ON
2
3
4
1 2 3 4
WITH CONTROLLER
Dip Switch 4 'on'
1
2
3
E
4
1 2 3 4
WITHOUT CONTROLLER
Dip Switches 3 & 4 'on'
2nd WATER HEATER
Plug EZ-link cable into
connector 'E'
ON
1
2
ON
3
4
1 2 3 4
WITH CONTROLLER
Dip Switch 4 'on'
1
2
3
Secure cable with
cable clamp & screw
4
1 2 3 4
EZ-link cable drawn through
cable grommet on underside
of each water heater
WITHOUT CONTROLLER
Dip Switch 4 'on'
Ez-link Cable Connection
874, 876 series 612-620 models
Control Board 612, E16, 618, 620 models with Ez-Link Connection
SK7255 06/12
REV AD
15
EZ-LINK SYSTEM
SECURE CABLE WITH
CABLE CLAMP AND SCREW
DIP1
ON
1
2
3
4
1
2
3
4
OFF
ON
DIP SWITCH 4 OF DIP1
SET OF DIP SWITCHES IN
THE ON (UP) POSITION
EZ-LINK
CABLE
PLUG IN
EZY-LINK
CABLE
INTO
CONNECTOR
EZ-LINK CABLE CONNECTION
CONTINUOUS FLOW WATER HEATER
86,87 SERIES, 022,024,027 MODELS
Control Board 024, 027 models with Ez-Link Connection
16
EZ-LINK SYSTEM
(WITH OR WITHOUT CONTROLLER)
BOTH WATER HEATERS
DIP SWITCH 4 OF DIP1
SET OF DIP SWITCHES IN
THE ON (UP) POSITION
SECURE CABLE WITH
CABLE CLAMP AND SCREW
ON
EZ-LINK
CABLE
3
4
1
2
3
4
(WITHOUT CONTROLLER)
FIRST WATER HEATER ONLY
DIP SWITCH 1 OF DIP 2
SET OF DIP SWITCHES IN
THE ON (UP) POSITION
ON
2
DIP2
ON
2
3
4
2
3
4
ON
1
1
1
2
3
4
1
2
3
4
OFF
DIP2
ON
PLUG IN EZ-LINK
CABLE INTO CONNECTOR
OFF
1
OFF
DIP1
ON
(WITHOUT CONTROLLER)
SECOND WATER HEATER ONLY
(WITH CONTROLLER)
BOTH WATER HEATERS
ALL DIP SWITCHES IN THE
OFF (DOWN) POSITION
ControlCABLE
Board
627 models with
EZ-LINK
CONNECTION
CONTINUOUS FLOW WATER HEATER
86,87 SERIES, 627 MODELS
Ez-Link Connection
SK6668-47 REV_AD
2/12
17
EZ-LINK SYSTEM
Typical Two Unit Manifold with Ez-Link Connection
MANIFOLD INSTALLATION - EZ LINK CONNECTION
TWO CONTINUOUS FLOW WATER HEATERS - 874, 876 SERIES 012 - 020 & 612 - 620 MODE
eaves, balconies
& other projections
no minimum
distance
requirement
350
300
MIN
to return wall &
openings into building
300 MIN
Temperature
Controller(s)
(installed indoors)
(Optional
612 - 620 Models)
in use
priority
°C
x10
check
hot water
temperature
before use
water
volume
on
off
Weatherproof
GPO x 2
K
Controller
Cable
Ez-Link
Cable
COLD WATER SUPPLY
HOT WATER
TO OUTLETS
GAS SUPPLY
PIPE SIZES:
Manifold DN25
Branches DN20
NOTE:
PRESSURE
LIMITING DEVICE
(PLV)
REQUIRED TO
TLD IF PLV
INSTALLED AT
WATER HEATER
NOTE: NON RETURN
VALVES (NRV)
REQUIRED ON COLD AND
HOT SUPPLY LINES TO A
TEMPERATURE LIMITING
DEVICE (TLD) IF NOT
INCORPORATED IN TLD.
TEMPERATURE LIMITING DEVICE
IF REQUIRED
SUITABLE FOR MAXIMUM FLOW.
COLD WATER
TEMPERED
WATER
TO
OUTLETS
SUPPLY
LEGEND
ISOLATION VALVE (FULL FLOW)
PRESSURE LIMITING VALVE
NON RETURN VALVE
TEMPERING
VALVE
Typical Two Unit Manifold with Ez-Link Connection
Outdoor 874, 876 Series – M16, 018, 020, 612, E16, 618, 620 Models
Refer to the Owner‟s Guide and Installation Instructions supplied with the water
heater for additional information on the installation of the water heaters.
18
EZ-LINK SYSTEM
MANIFOLD INSTALLATION - EZ LINK CONNECTION
TWO CONTINUOUS FLOW WATER HEATERS - 872,874,876 SERIES 027 & 627 MODELS
eaves, balconies
& other projections
no minimum
distance
requirement
350
300
MIN
to return wall 300 Min.
openings into building
500 Min.
Temperature
Controller(s)
(installed indoors)
(optional 627 models)
in use
priority
°C
x10
check
hot water
temperature
before use
water
volume
on
off
Weatherproof
GPO x 2
K
Controller
Cable
Ez-Link
Cable
COLD WATER SUPPLY
HOT WATER
TO OUTLETS
GAS SUPPLY
PIPE SIZES:
Manifold DN25
Branches DN20
NOTE:
PRESSURE
LIMITING DEVICE
(PLV)
REQUIRED TO
TLD IF PLV
INSTALLED AT
WATER HEATER
NOTE: NON RETURN
VALVES (NRV)
REQUIRED ON COLD AND
HOT SUPPLY LINES TO A
TEMPERATURE LIMITING
DEVICE (TLD) IF NOT
INCORPORATED IN TLD.
TEMPERATURE LIMITING DEVICE
IF REQUIRED
SUITABLE FOR MAXIMUM FLOW.
COLD WATER
TEMPERED
WATER
TO
OUTLETS
SUPPLY
LEGEND
ISOLATION VALVE (FULL FLOW)
PRESSURE LIMITING VALVE
NON RETURN VALVE
TEMPERING
VALVE
Typical Two Unit Manifold with Ez-Link Connection
Outdoor 372, 872, 874, 876 Series – 024, 027, 627 Models
Refer to the Owner‟s Guide and Installation Instructions supplied with the water
heater for additional information on the installation of the water heaters.
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EZ-LINK SYSTEM
MANIFOLD INSTALLATION - EZ LINK CONNECTION
TWO CONTINUOUS FLOW WATER HEATERS - 862,864,866 SERIES 027 MODELS
no minimum
distance
requirement
350
Temperature
Controller
(installed indoors)
in use
priority
°C
x10
check
hot water
temperature
before use
water
volume
on
off
K
GPO x 2
Controller
Cable
Ez-Link
Cable
COLD WATER SUPPLY
HOT WATER
TO OUTLETS
GAS SUPPLY
PIPE SIZES:
Manifold DN25
Branches DN20
NOTE:
PRESSURE
LIMITING DEVICE
(PLV)
REQUIRED TO
TLD IF PLV
INSTALLED AT
WATER HEATER
NOTE: NON RETURN
VALVES (NRV)
REQUIRED ON COLD AND
HOT SUPPLY LINES TO A
TEMPERATURE LIMITING
DEVICE (TLD) IF NOT
INCORPORATED IN TLD.
TEMPERATURE LIMITING DEVICE
IF REQUIRED
SUITABLE FOR MAXIMUM FLOW.
COLD WATER
TEMPERED
WATER
TO
OUTLETS
SUPPLY
LEGEND
ISOLATION VALVE (FULL FLOW)
PRESSURE LIMITING VALVE
NON RETURN VALVE
TEMPERING
VALVE
Typical Two Unit Manifold with Ez-Link Connection
Indoor 362, 862, 864, 866 Series – 027 Models
Refer to the Owner‟s Guide and Installation Instructions supplied with the water
heater for additional information on the installation of the water heaters.
20
EZ-LINK SYSTEM
MANIFOLD INSTALLATION - EZ LINK CONNECTION
TWO CONTINUOUS FLOW WATER HEATERS - 862,864,866 SERIES 627 MODELS
no minimum
distance requirement
350
Temperature
Controller
(installed indoors)
(optional-627 models)
in use
priority
°C
x10
check
hot water
temperature
before use
water
volume
on
off
K
GPO x 2
Controller
Cable
Ez-Link
Cable
COLD WATER SUPPLY
HOT WATER
TO OUTLETS
GAS SUPPLY
PIPE SIZES:
Manifold DN25
Branches DN20
NOTE:
PRESSURE
LIMITING DEVICE
(PLV)
REQUIRED TO
TLD IF PLV
INSTALLED AT
WATER HEATER
NOTE: NON RETURN
VALVES (NRV)
REQUIRED ON COLD AND
HOT SUPPLY LINES TO A
TEMPERATURE LIMITING
DEVICE (TLD) IF NOT
INCORPORATED IN TLD.
TEMPERATURE LIMITING DEVICE
IF REQUIRED
SUITABLE FOR MAXIMUM FLOW.
COLD WATER
TEMPERED
WATER
TO
OUTLETS
SUPPLY
LEGEND
ISOLATION VALVE (FULL FLOW)
PRESSURE LIMITING VALVE
NON RETURN VALVE
TEMPERING
VALVE
Typical Two Unit Manifold with Ez-Link Connection
Indoor 362, 862, 864, 866 Series – 627 Models
Refer to the Owner‟s Guide and Installation Instructions supplied with the water
heater for additional information on the installation of the water heaters.
21
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Revision Date: 2012 July
122139C
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