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

GENERAL INSTALLATION
TEMPERATURE
LIMITING DEVICE
(TLD)
PLV (SUPPLIED)
500 kPa
NON RETURN
VALVE
ISOLATING VALVE
ISOLATING VALVE
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
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
KITCHEN
LAUNDRY
BATHROOM
ENSUITE
(OR)
ISOLATING VALVE
COLD
Supply
NON RETURN
VALVE
PLV Water
ECV
Heater
FLOW+RETURN PUMP
NON RETURN
VALVE
NON RETURN
VALVE
PLV(SUPPLIED)
500 kPa
- 10 -
NON TEMPERED
SUPPLY
NON RETURN
VALVE
TEMPERATURE
LIMITING DEVICE
TEMPERED
(TLD)
Supply
NON RETURN
VALVE
NON RETURN
VALVE
PLV(SUPPLIED)
500 kPa
ECV(Not Supplied)
700 kPa
ISOLATING VALVE
ECV(Not Supplied)
700 kPa
HOTFLO Electric Storage Tanks Operating/Installation Manual
P&TR VALVE
(Supplied) 850 kPa
WATER
HEATER
P&TR VALVE
(Supplied 850 kPa)
WATER
HEATER