37
IOM Instructions
HKV LArge CommerCiAL
Heat Controller, Inc.
Unit & System Checkout
be cleaned using a 10% solution of dish washing
detergent.
q
Unit Controls:
Verify CXM field selection options
are proper and complete.
System Checkout
q
System Water Temperature:
Check water
temperature for proper range and also verify
heating and cooling setpoints for proper operation.
q
System pH:
System water pH is 7.5 - 8.5. Proper
pH promotes longevity of hoses and fittings.
q
System Flushing:
Verify all hoses are connected
end to end when flushing to ensure debris
bypasses unit heat exchanger and water valves
etc. Water used in the system must be potable
quality initially and clean of dirt, piping slag, and
strong chemical cleaning agents. Verify all air is
purged from the system. Air in the system can
cause poor operation or system corrosion.
q
Cooling Tower/Boiler:
Check equipment for
proper setpoints and operation.
WARNING!
WARNING!
Verify ALL water controls are open and allow
water flow prior to engaging the compressor. Freezing of
the coax or water lines can permanently damage the heat
pump.
WARNING!
WARNING!
To avoid equipment damage, DO NOT leave
system filled in a building without heat during the winter
unless antifreeze is added to system water. Condenser
coils never fully drain by themselves and will freeze unless
winterized with antifreeze.
q
Standby Pumps:
Verify the standby pump is
properly installed and in operating condition.
q
System Controls:
Verify system controls function
and operate in the proper sequence.
q
Low Water Temperature Cutout:
Verify low
water temperature cut-out controls are provided
for the outdoor portion of the loop or operating
problems will occur.
q
System Control Center:
Verify control center and
alarm panel for proper setpoints
and operation (if used).
q
Miscellaneous:
Note any questionable aspects of
the installation.
q
Log Data:
Record data on startup log sheet in
this manual or on web site. keep log for future
reference.
