Install Instructions

Installation & Servicing Instructions Rinnai Q-Series

Complaint Description Solution

Temperature drop of the

DHW (Combi)

1. Flow reducing valve Check ﬂ ow reducing valve for the correct type

in accordance with the installation instructions

2. Thermostatic mixing valve incorrectly set. Adjust (by measuring the temperature)

3. DHW power for the boiler is set too low. -Check PARA chapter Step No. 43

- Check the functioning and wiring of the

DHW sensor T3.

temperature drop of the

Solo hot

water with the DHW

cylinders

1. Synchronising valve Check the setting in accordance with

the illustrated DHW cylinder installation

instructions

2. Thermostatic mixing valve incorrectly set Adjust by measuring the temperature

3. Hot water temperature too low Check PARA chapter Step No. 31 or RS100 is

set too low. Check the functioning and wiring

of the DHW sensor T3

4. Hot water power for the boiler is set too

low.

Check PARA chapter Step No. 43

radiators do not get hot

enough or warming them

up takes too long

1. Check setting of room thermostat or

RS100

See installation and user manual RS100

2. Supply water temperature too low. Check setting PARA chapter Step No. 1 and

increase if necessary

3. Incorrect choice of installation PARA chapter Step No. 2 if necessary change.

4. Installation resistance too high (given an

average T > 36°F the boiler decreases

the load).

- See installation instructions.

- Check / clean water ﬁ lter check dimensions

of pipes.

- If necessary, increase pump rpm Para 48.