KlassKeeper – Installation, Operation, and Maintenance Manual
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© Copyright 2013 CGC Group Inc.
Last Revised April 2020 Installation, Operation, and Maintenance Manual is Subject to Change without Notice.
COMMISSION & STARTUP
CAUTION:
To avoid fouled machinery, extensive unit clean up and void warranty, do not operate units without
filters in place or use as a temporary heat source during construction.
The Bulldog KlassKeeper Heat Pump provides year round cooling and heating as controlled by unit
thermostat or by a direct digital controller.
It provides cooling using a water-cooled refrigeration circuit and provides heating using a hydronic coil.
The compressor operates during cooling operation only and does not operate during heating operation
thereby providing quieter operating sound levels and energy cost savings. The heat recovery module adds
additional energy savings by transferring energy from the exhaust air to the supply air stream.
Central heat injection and rejection equipment is automatically controlled via a CGC control panel (or
equivalent) to provide the required loop water temperature for correct KlassKeeper Bulldog Heat Pump
units operation.
System Flushing
Proper system cleaning and flushing is an important aspect of the commissioning and start up procedure
for KlassKeeper Units. Ensure the system has been flushed properly. This prevents fouling of the unit heat
exchangers.
NOTE: Hydronic coils are not 100% drainable.
System Fluid
Ensure that system water temperature is within an acceptable range to facilitate start-up (80-120F) for
cooling and (100F – 140F) for heating
System Water pH
System water should have a neutral pH balance of approximately 7.5, which will extend the life of the
hoses, heat exchangers, and other water side accessories.
Water Flow Rate
Open all isolation valves to the unit. Ensure that the entering and leaving fluid temperatures of the unit
in operation are acceptable. Typically there is an 8-15⁰F (4.4-8.3⁰C) drop in heating and 10-15⁰F (5.5-8.3⁰C)
rise in cooling. Under extreme conditions, slight variances in the temperature may be noted.
