Figure 3 - Hot Water Plumbing System Example - With Temperature Limiting Device (Tld) - Rinnai HOTFLO HFE Series Operation & Installation Manual

COLD
Supply
Valves with pressure ratings other than specified are unsuitable & must not be used.
NOTE
It may be a requirement that the hot and cold water supply pressures to a Temperature Limiting Device (TLD)
are equal. If this is the case, a Pressure Limiting Valve (PLV) with the same pressure rating as the PLV for
the hot water is required for the TLD as shown.

Figure 3 - Hot Water Plumbing System Example - with Temperature Limiting Device (TLD)

KITCHEN
LAUNDRY
BATHROOM
ENSUITE
ISOLATING VALVE
COLD
Supply
Valves with pressure ratings other than specified are unsuitable & must not be used.
NOTE
Figure 4 - Hot Water Plumbing Water Heater system Example - with Flow & Return Pipe Work
Rinnai Australia
GENERAL INSTALLATION
KITCHEN
TEMPERATURE
LIMITING DEVICE
(TLD)
LAUNDRY
PLV (SUPPLIED)
500 kPa
NON RETURN
VALVE
BATHROOM
ISOLATING VALVE
ENSUITE
(OR)
ISOLATING VALVE
ISOLATING VALVE
COLD
Supply
NON RETURN
VALVE
PLV
ECV
FLOW+RETURN PUMP
NON RETURN
VALVE
ISOLATING VALVE
NON RETURN
VALVE
NON TEMPERED
SUPPLY
TEMPERED
Supply
NON RETURN
VALVE
PLV 500 kPa
(Not Supplied)
Water
Heater
ISOLATING VALVE
PLV 500 kPa
(Not Supplied)
ECV(Not Supplied)
700 kPa or 850 kPa
- 7 - HOTFLO Electric Storage Water Heater Operating/Installation Manual
PTR VALVE
(Supplied) 850 kPa or
NON RETURN
VALVE
TEMPERATURE
LIMITING DEVICE
(TLD)
NON RETURN
WATER
VALVE
HEATER
ECV(Not Supplied)
700 kPa or 850 kPa
PTR VALVE
(Supplied 850 kPa or
1000 kPa)
WATER
HEATER
1000 kPa