KlassKeeper – Installation, Operation, and Maintenance Manual INFORMATION Handling Care must be taken in handling the cabinet, chassis, built in ERV and other accessories to ensure that this equipment does not sustain any damage. The protective shipping packaging should be kept on until unit is ready for installation. During construction, the equipment must be sheltered from contaminants and debris such as drywall dust, wood chips, or paint as these may damage the fan, or block the cooling / heating coil and diminish unit performance.
KlassKeeper – Installation, Operation, and Maintenance Manual Refrigerant Charge Model KKV024 KKV030 KKV036 KKV042 KKV048 R410A Charge (oz.) Consult factory Unit Clearances Clearances for the KlassKeeper units shall be provided such that the access panel swinging door opens and closes without obstruction to allow service access to the filters, the unit disconnect, fans and fan motors, and unit chassis.
KlassKeeper – Installation, Operation, and Maintenance Manual INSTALLATION The Installation of KlassKeeper units and accessories must be in accordance with all local codes and regulations of all relevant governing authorities having jurisdiction. The following installation procedures are recommended by the Manufacturer. It is the responsibility of the installing contractor to comply with all applicable codes and regulations.
KlassKeeper – Installation, Operation, and Maintenance Manual Dry Walling (when required) It is permissible to glue or screw drywall directly to the side of the cabinet. Please note that the drywall screw must not be longer than the drywall thickness plus a maximum 3/8”. Ensure drywall is not obstructing the swinging access door.
KlassKeeper – Installation, Operation, and Maintenance Manual Wiring 1. Connect the wire harnesses between the chassis, ERV and cabinet as per the below diagram. 2. Connect the power plug to the receptacle in the cabinet. Wire Harness Type Harness Length Harness Pin # Signal 42”...
KlassKeeper – Installation, Operation, and Maintenance Manual OPERATION Inputs & Outputs The KlassKeeper can be completely controlled by a BAS without a third party controller or a thermostat. Modbus RTU is standard. BACnet gateway is optional. The controller within the KlassKeeper heat pump controls the operation of the unit and has several sets of inputs and outputs, both digital and analog.
KlassKeeper – Installation, Operation, and Maintenance Manual Operating Modes The KlassKeeper heat pump has several modes of operation including: heating, cooling (first stage), cooling (second stage), and fan. The unit is also equipped with an energy recovery ventilator (ERV). Each of these modes of operation is invoked by closing the associated digital input on the internal unit controller or via BAS, third party controller or thermostat.
KlassKeeper – Installation, Operation, and Maintenance Manual During ERV operation, if the fresh air leaving temperature (FRSH-LAT) drops below 40°F, both the heat wheel and ERV fan will be de-energized and an alarm will be activated. This condition may be an indication of a heat wheel malfunction.
Page 13
KlassKeeper – Installation, Operation, and Maintenance Manual Low Discharge Air Temperature If at any point the discharge air temperature (TA) drops below 40°F, the compressors will be turned off, the general alarm contact (K7) will be energized, a flashcode of 1 will be displayed, and the alarm output (AN1) will produce 1 VDC.
KlassKeeper – Installation, Operation, and Maintenance Manual When the system is locked out, all of the output relays will be de-energized except for the general alarm contact (K7) which will be energized. A flashcode of 10 will be displayed, and the alarm output (AN1) will produce 10 VDC.
KlassKeeper – Installation, Operation, and Maintenance Manual 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.
KlassKeeper – Installation, Operation, and Maintenance Manual Water System Freeze Protection Ensure that freeze protection is provided for the outdoor portion of the water loop system. Inadequate freeze protection can lead to coil damage. NOTE: A potential situation may occur during construction where the system fluid loop is drained after being cleaned, flushed and tested.
Page 17
KlassKeeper – Installation, Operation, and Maintenance Manual Operational Expectations The BULLDOG KlassKepper Heat Pump is designed to provide reliable heating and cooling right out of the box. However, transportation and handling damage, service valve leakage, or system problems may cause less than optimum operation.
Page 18
KlassKeeper – Installation, Operation, and Maintenance Manual MAINTENANCE WARNING: To prevent injury or death due to electrical shock or contact with moving parts, disable the unit using the electrical disconnect before servicing. Inspect Filters Establish a regular maintenance schedule. Clean filters frequently and replace as needed. Supply air filter removal: To remove the supply filter from the unit lift the filter up, pull the bottom towards self, and pull the filter down and out of the unit.
Page 19
KlassKeeper – Installation, Operation, and Maintenance Manual 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.
Need help?
Do you have a question about the KlassKeeper KKV024 and is the answer not in the manual?
Questions and answers