Rinnai MC-601Q Operation & Installation Manual Download Page 1

 1 

Operation & Installation Manual

Universal Water Controller MC-601Q

This guide is for the operation and installation of the Rinnai universal water controller 

model MC-601Q.
These instructions 

MUST

 be used and installed in conjunction with the Rinnai Continuous 

Flow Water Heaters, Operation & Installation Manual supplied with compatible Rinnai 

Continuous Flow Water Heaters.
If the MC-601Q is not listed as being compatible in the Operation & Installation Manual 

supplied with your Rinnai Continuous Flow Water Heater, then contact Rinnai for advice.

Refer  to  page  3  of  this  manual  to  confirm  the  maximum  number  and  combination  of 

controllers that can be fitted to a compatible Rinnai Continuous Flow Water Heater model.

This water controller is compatible with the following other Rinnai water controller models: 

MC-91Q, MC-100V, BC100V & MC-503RC.

IMPORTANT

This water controller to be installed in accordance with:

• 

Local Regulations and Municipal Building Codes including local Occupational Health & 

Safety requirements.

• 

This appliance must be installed, maintained and removed by an Authorised Person.

• 

For continued safety of this appliance it must be installed and maintained in accordance 

with the manufacturer’s instructions.

OPERATION

Temperature Control

Water controllers allow precise temperature control by the user. When used correctly, the hot water unit will deliver 

the selected temperature, even when the water flow is varied, or more than one tap is in use. 

Only one MC model water controller can be designated as a ‘Master’ water controller and this is normally used 

in the kitchen. All the remaining water controllers are designated as ‘Sub’ water controllers and are for use in 

bathrooms, toilets and laundries. The maximum temperature limit for all ‘Sub’ water controllers is restricted to 

50°C* to minimise the risk of burns in these areas. 
Each water controller can be individually programmed, however the water heater can only deliver one set 

temperature at any time. The available temperatures (°C) are as follows:

Water Controller 

Temperatures (°C)

Master (MC)

37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 55*, 60*, 65*, 70*, 75*

Sub (MC or BC) 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50

For hygiene in sanitary areas such as bathrooms, the suggested temperature should be 37°C ~ 43°C.

The  above  is  a  suggestion  only,  as  you  may  find  higher  or  lower  temperatures  more  comfortable,  however 

maintaining lower temperatures also helps to save energy.
To obtain water temperatures lower than 37°C, simply open the cold water tap and add cold water until the desired 

lower temperature is reached.

NOTE

*

 Temperature may not be available on all installations. Some Rinnai Continuous Flow water 

heaters can be programmed to deliver higher temperatures from the master water controller. 
Rinnai Continuous Flow water heaters may be programmed to restrict / deliver maximum 

temperatures of 40, 42, 50, 55, 60, & 65°C. Contact Rinnai for more details.

06000012376821

U344-0661(01)

Summary of Contents for MC-601Q

Page 1: ...ll deliver the selected temperature even when the water flow is varied or more than one tap is in use Only one MC model water controller can be designated as a Master water controller and this is normally used in the kitchen All the remaining water controllers are designated as Sub water controllers and are for use in bathrooms toilets and laundries The maximum temperature limit for all Sub water ...

Page 2: ...ous Flow Water Heaters Operation Installation Manual Transferring Priority To control the water delivery temperatures when using two or more water controllers it is necessary to have priority transferred to the water controller you wish to use Transferring of priority will NOT be possible if the In Use indicator is currently illuminated as this indicates hot water is flowing and that another water...

Page 3: ...on cables may be used Optional longer communication cabling is available from Rinnai The water heater end of the cables are fitted with spade terminals Only two pairs of cables 4 spade connectors in total may be terminated When attaching three or four cables it is necessary to join the cable terminals as follows For each pair cut off the existing spade connectors and re terminate each pair into a ...

Page 4: ...ximately 5 seconds STEP 2 Check that the display on ALL FOUR water controllers is lit and displaying a temperature when switched on If any ONE of the water controllers displays two dashes see Fig 2 repeat STEP 1 This completes the activation procedure for the fourth water controller you may ignore Question 2 QUESTION 2 Is the water heater marked to state it delivers water not exceeding 50 C IF YES...

Reviews: