Regular Care; Over Flow Tray And Drain; Pressure And Temperature Relief (Ptr) Valve; Expansion Control Valve (Ecv) If Fitted - Rinnai HOTFLO HFE Series Operation & Installation Manual

REGULAR CARE

Over flow tray and drain

The overflow tray and drain (if fitted) should be periodically checked to ensure there are no blockages.

Pressure and Temperature Relief (PTR) Valve

This valve is located near the top of the water heater and is essential for safe operation. It is normal for the valve
to release a small quantity of water through the drain line during heating. However, continuous leakage of water
from the valve and its drain line may indicate a problem with the water heater.
• Never block the outlet of the PTR valve or its drain line for
any reason. The easing gear must be operated at least once
WARNING every six months or more frequently in areas with a high
incidence of water deposits. It is very important you raise
and lower the easing gear gently.
• Failure to do this may result in the water heater cylinder
failing or under certain circumstances, exploding.
• If the valve does not discharge water when the easing gear
lever is lifted, or does not seal again when the easing gear
WARNING is closed, attendance by an authorised person must be
arranged without delay. The PTR valve is not serviceable.

Expansion Control Valve (ECV) if fitted

Operate the easing lever on the expansion control valve once every six months. It is very important you raise and
lower the lever gently.
Rinnai Australia
IMPORTANT INFORMATION
- 3 - HOTFLO Electric Storage Water Heater Operating/Installation Manual