73
Proven Pilot: AR3000 – AR4000
11.8 DOMESTIC HOT WATER HEATER
Hot water heaters are designed for installation with a storage tank. The operation of the properly sized circulating pump, the piping
between the tank and heater and the control of water velocity, as explained below, are important for correct operation of your hot water
heater.
11.9 WATER THERMOSTAT SETTING
1. This appliance is provided with an electronic temperature controller as detailed in Section 6.
2. The maximum setting for this water heater is 140°F.
3. There is a hot water scald potential if the temperature controller is set too high.
11.10 WATER FLOW CONTROL
To ensure proper water flow through the heat exchanger, it is necessary to select the proper pump. Temperature rise at full fire will
be an indication of flow. This must be done on initial installation and periodically rechecked.
Excessive lime/scale build-up in the heat exchanger is a result of improper water treatment or improper pump operation. Care should be
taken to maintain proper water treatment and proper pump operation.
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