Rinnai RV53E User Manual

 

 

RV53i & RV53e Operation and Installation Manual 

33 

  Temperature Controller Installation   

1.  Determine a suitable location for the controller. 

2.  Make three holes in the wall as shown. 

3.  Run the cable between the controller and the Rinnai water 

heater or the controller and another controller. 

4.  Remove the face plate from the temperature controller 

using a screwdriver. 

5.  Connect the cable to the temperature controller. 

6.  Mount the controller to the wall using the holes drilled in 

step 2. 

Do not attempt to connect the temperature controllers with the power on.  There is 120 
volt potential, next to the temperature controller connections inside the unit.   

All service and wiring should be performed by a registered installer. 

     WARNING 

securing screw

1-21/32"

3-5/16"

securing screw

wiring hole

7.  Disconnect the power from the water heater. 

8.  Remove a screw on the Quick Cable Connector.   

(Fig. 1) 

9.  To access the cable screws rotate the Quick Cable 

Connector 90º counterclockwise. (Fig. 2) 

Follow the procedure below to install an MC-91 or MCC-91 
temperature controller.   

10.  Loosen the clamp screw and secure wire cable with clamp.  

The clamp is in the box with the temperature controller.  
Make sure the length of the wire is long enough.  There 
should be no tension in the wire. (Fig. 3) 

11.  Loosen 2 cable screws on the terminals for controls and 

connect the cable.  You cannot connect more than 2 
cables at a time.  When connecting more than 2 cables, 
connect them in parallel. (Fig. 4) 

12.  Install the Quick Cable Connection with 1 screw. (Fig. 5) 

13.  Insert wire cable through the Cable Access Hole so that it 

can be accessed from the back. (Fig. 2)