KlassKeeper – Installation, Operation, and Maintenance Manual
18
© Copyright 2013 CGC Group Inc.
Last Revised April 2020 Installation, Operation, and Maintenance Manual is Subject to Change without Notice.
Safety Control Reset
All BULLDOG Heat Pump Systems include high and low pressure switches to prevent the machine from
operating under abnormal conditions of temperature or water flow. If multiple pressure alarms occur in
24 hours, the compressor operation will be permanently locked out until the unit is reset, or power is
disconnected for 20 seconds.
NOTE: If the heat pump must be reset more than twice, check the unit for a dirty air filter, abnormal
entering water temperature, inadequate water flow (delta T method), or internal malfunctions that may
be causing high or low pressure conditions. If the unit continues to alarm, contact a trained service
technician and ensure the problems are resolved before re-setting the unit again.
∆T Method: The normal water temperature differential for a BULLDOG Heat Pump is 8-15⁰F (4.4-8.3⁰C) in
heating and 10-15⁰F (5.5-8.3⁰C) in cooling.
Drain Pan and Condensate Hose
Make sure to inspect and clean if necessary, the condensate hose and drain pan on a regular basis.