A.O. Smith CAHP-120C Series, Руководство пользователя

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is in effective operation. Please pull the handle of the relief valve several times to ensure the
valve can switch freely. Please pull the handle of the relief valve once every month, and
discharge 4~8L water, which can prevent scaling inside of the relief valve.
Figure 3.4
3.6 Circulating Pump Selection
It is recommended to select the circulating pump based on the information listed in table
3.1. If the flow rate of the water circulating pump is much larger than the listed flow rate, the
energy consumption would increase.
Table 3.1 Parameters for Circulating Pump Selection
The recommended water circulating pump is the high water temperature water pump,
Grundfos Pumper UP15-14BT, which has nominal water flow rate 0.3 cubic meters and lift 1m.
If other pump is used, adjust the pump according to actual condition for proper water supply.
Piping Length (m) Power (W) Water Flow Rate (m
3
/h) Piping Pressure Drop (kPa)
25 ̚ 50 25 0.2 — 0.3 11
WARNING: The relief tube must not be blocked in any case. The relief tube exit should be
communicated with atmosphere. Please make sure the hot water released should not
result in any injury or property loss.
CAUTION: Please select the circulating pump which is special for hot water application.
The maximum temperature rating needs to be higher than 90 .
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WARNING: Insulate around the T&P relief valve and the relief tube to prevent freezing in
winter which can result in safety accident.
T&P Relief Valve
Handle
Relief Tube