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DOMESTIC WATER COIL CONNECTION
When installing the domestic water coil connection an ASME certified pressure /
temperature relief valve must be installed. Install pressure temperature relief
valve in the hot water supply side exiting the domestic water coil, see figure 5. Drain
valve piping should be piped to a safe area for discharge. Failure to install pressure
temperature relief value will void boiler warranty.
Pressure Temperature Relief Valve Installation
DOMESTIC COLD WATER IN
DOMESTIC HOT WATER OUT
PRESSURE & TEMPERATURE
RELIEF VALVE
TEMPERATURE /
ALTITUDE GAUGE
BOILER FRONT VIEW
Figure 4
14
DOMESTIC WATER COIL
AQUASTAT RELAY
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