Rheem CFGWH 874 Series Installation Instructions Manual Download Page 1

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INSTALLATION – CONTROLLERS 

CONTROLLERS 

The  Rheem  874  and  876  series  can  be  installed  with  Rheem  controllers  to  enable  the  user  to  control  the 
temperature  of  the  delivered  water  from  the  outlet  of  the  water  heater.  There  are  two  families  of  Rheem 
controllers suitable for installation with this water heater; the standard controllers and the Deluxe controllers. 

Standard Controllers 

There  are  three  types  of  standard  controller.  They  are  the  Kitchen  controller  (Rheem  AU  -  Part  299850, 
NZ - Part A299850), Bathroom 1 controller (Rheem AU - Part 299851, NZ - Part A299851) and the Bathroom 2 
controller (Rheem  AU - Part 299852,  NZ - Part  A299852). These part numbers include the controller cable 
supplied with the controller. 

The standard controllers are suitable for use on all 874 and 876 series models. 

The  standard  controll

ers  are  identified  by  a  ‘K’  (Kitchen  controller),  ‘B1’  (Bathroom  1  controller)  or  ‘B2’ 

(Bathroom 2 controller) located on the front bottom left hand corner of the standard controller. 

Deluxe Controllers 

There are three types of Deluxe controller. They are the Kitchen Deluxe controller (Rheem AU - Part 299858, 
NZ - Part A299861), Bathroom 1 Deluxe controller (Rheem AU - Part 299859, NZ - Part A299862) and the 
Bathroom 2 Deluxe controller (Rheem AU - Part 299860, NZ - Part A299863). These part numbers include the 
controller cable supplied with the controller. 

The Deluxe controllers are suitable for use on all 874 and 876 series models. 

The Deluxe controllers are identified by a ‘K’ (Kitchen Deluxe controller), ‘B1’ (Bathroom 1 Deluxe controller) 
or ‘B2’ (Bathroom 2 Deluxe controller), located under the front panel, to the bottom left hand corner adjacent 
to the BATH FILL VOLUME label. 

The  standard  and  Deluxe  controllers  are  designed  to  be  hard  wired  into  the  water  heater  using  either  the 
Kitchen controller cable (Rheem PN 299856) or the Bathroom controller cable (Rheem PN 299857). 

Notes: 

Temperature controllers are only suitable for single water heater installations or where two water heaters
are installed and linked together using the Rheem EZ Link system. They are not suitable if multiple water
heaters are manifolded together.

Where more than one controller is installed, the second or third controller must be of the same family.

A standard controller can only be installed with another standard controller(s) and a Deluxe controller can
only  be  installed  with  another  Deluxe  controller(s).  A  standard  controller(s)  and  a  Deluxe  controller(s)
cannot be connected to the same water heater.

One, two or three controllers can be installed. Only one of each type of controller can be connected to the
water heater. Therefore, a maximum of three controllers only can be connected to each water heater.

A  Bathroom  2  controller  can  only  be  installed  if  a  Bathroom  1  controller  is  installed  and  a  Bathroom  2
Deluxe controller can only be installed if a Bathroom 1 Deluxe controller is installed.

An  additional  Kitchen  controller  cable  or  Bathroom  controller  cable  can  be  used  if  an  extension  of  the
cable length is required.

It will be necessary to cut an opposite end off both cables to be installed in order to wire them together.
Alternatively,  the  cables  may  be  extended  using  two-core  flex  with  a  minimum  cross-sectional  area  of
0.5 mm

2

.

Other manufacturers’ controllers are not suitable to and cannot be installed with this water heater.

 Warning:

 Temperature controllers 

must not

 be fitted to this water heater (874 series) if it is installed as an 

in-series gas booster with a solar water heater system because water at a temperature much higher than the 
controller setting can be delivered. If a solar water heater is installed to an existing water heater installation, 
then all controllers 

must be

 disconnected and removed. 

Pages from install instruct - Rheem CFGWH 874 876 627 series - 122202 Rev G

Summary of Contents for CFGWH 874 Series

Page 1: ...ble Rheem PN 299856 or the Bathroom controller cable Rheem PN 299857 Notes Temperature controllers are only suitable for single water heater installations or where two water heaters are installed and...

Page 2: ...of KITCHEN CONTROLLER The standard Kitchen controller Rheem AU Part 299853 NZ Part A299850 or Kitchen Deluxe controller Rheem AU Part 299861 NZ Part A299861 is to be installed in the kitchen or laundr...

Page 3: ...ds 6 Connect the cable to the two terminals on the back of the controller connections are not polarity sensitive Ensure the connecting screws are seated tightly 7 Place the controller over the base pl...

Page 4: ...1 and 4 and make an opening in the thin section in the underside of the controller to accommodate the cable as shown in the diagram prior to Step 6 Kitchen Controller Standard and Deluxe Installation...

Page 5: ...ting of 37 C and a maximum temperature setting of 874 series 50 C 876 series 50 C The method of installation for the standard Bathroom 1 and Bathroom 2 controllers and the Bathroom 1 Deluxe and Bathro...

Page 6: ...the base plate 7 Fix the base plate to the wall using suitable screws and wall anchors Ensure the projections in the base plate are pointing upwards 8 Plug the controller wire into the Bathroom contr...

Page 7: ...le holder notches It is important to seat the cables into the cable notches Failure to do this may cause an unstable contact or even disconnection of the cables from the terminals if the cables were t...

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