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 TM 55-1925-273-10-1
0045 00
HOT WATER HEATERS AND RECIRCULATION PUMP
2
1
7
3
4
5
6
Figure 2. Hot Water Heaters and Recirculation Pump
Table 2. Hot Water Heaters and Recirculation Pump (refer to figure 2)
Key
Control/Indicator
Function
1
Relief Valve
This valve opens to permit excess pressure to vent from the hot water heater
tank.
2
PW-80, POT.WTR TO
This valve controls the flow of cold potable water into the hot water heater.
H.W. HTR.
3
Thermometer
The thermometer indicates the temperature of the hot water in the hot water
heater tank.
4
Hose Bibb, Hot Water
The hose bibb permits a hose to draw hot water directly from the hot water
heater tank.
5
Hose Bibb, Cold Water
The hose bibb permits a hose to draw cold water from the vessel's potable
water system.
6
Cutoff Valves, Differential
These valves secure the pressure to the hot potable water recirculation pump
Pressure Gauge
differential pressure gauge.
7
PW-82, H.W. HTR OUT
This valve controls the flow of hot potable water out of the hot water heater.
0045 00-5
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