Low Water Temperature Systems - Camus Hydronics MFH060 Installation, Operation And Service Manual

14

LOW WATER TEMPERATURE SYSTEMS

In applications where the heating system requires supply water temperatures below 130° F (55
bypass line must be installed upstream of the boiler pump so that outlet water can be re-circulated to
raise the inlet temp to a minimum of 130° F (55
adjust flow (See Figure 6). Alternatively, a thermostatic mixing valve may be supplied (available as a
factory option)
•
Adjustment procedure.
a. Fully open bypass and outlet valves.
b. With boiler running, read inlet temperature after 15 minutes.
c. If the inlet temperature is less than 130° F (55
temperature climbs to 130°F (55
d. If the inlet temperature is greater than 130° F ( 55
further adjustment is required.
e. Check the inlet temperature after 5 minutes and make final adjustments.
o
C). Balancing valves, preferably globe valves are used to
Figure 6: Low Water Temperature System
o
C)
15
o
C) slowly close outlet valve until the inlet
o
C) but not greater than 140° F (60
o
C), a
o
C) no