17
PRE START--UP CHECKLIST
CAUTION
!
UNIT DAMAGE AND/OR OPERATION HAZARD
Failure to follow this caution may result in unit damage
and/or improper equipment operation.
Equipment should never be used during construction due
to likelihood of wall board dust accumulation in the air
coil of the equipment which permanently affects the
performance and may shorten the life of the equipment.
CAUTION
!
UNIT DAMAGE AND/OR OPERATION HAZARD
Failure to follow this caution may result in unit damage
and/or improper equipment operation.
Check with all code authorities on requirements involving
condensate disposal/overflow protection criteria.
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Ensure the isolation valves are open and water control valves are
wired.
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Loop/water piping is complete and flushed, (clean and purged of
air).
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Verify loop water chemistry meets requirements on water
chemistry table (reference table 1)
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Antifreeze is added if necessary
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Verify HRP switch is energized, if applicable. Recommend
de--energize if installed and water not available.
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Verify the HRP system is purged and connected completely, if
applicable.
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Verify the freeze protection is set according to proper freeze
temperature (26 or 15
_
F)
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Remove access panels to access applicable compartments.
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Verify sufficient space is available for accessing and servicing
areas such as the blower and electric heat compartment and the
compressor and electrical control box compartment.
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Verify all supply voltage is in accordance with unit nameplate.
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Verify all wiring is tight and secure.
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Check that the unit blower is free to rotate and wheel is secure to
shaft.
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Verify the condensate drain pan is clear and drains with proper
external trap and pipe pitch.
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Ensure the system air filters are installed.
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Ensure no wiring is pinched when panels are re--installed.
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Verify loop pump wiring, if applicable, is in accordance with the
pump installation instructions.
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Verify all system accessories and components are wired per
applicable instructions and all wiring in accordance with NEC.
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If non--communicating thermostat ensure the UPM dip switch
settings are configured accordingly for Freeze Protection,
Lockout trip setting and Brownout). UPM dip switch settings
can be configured in the User Interface during set up (see steps
below in user interface quick setup).
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Ensure all panels are in place before powering up the unit.
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Always check incoming line voltage, power supply and
secondary control voltage for adequacy. Transformer primaries
are dual tapped for 208 and 230 volts. Connect the appropriate
tap to ensure a minimum of 18 volts secondary control voltage.
24 volts is ideal for best operation.
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The following guidelines are recommended for wiring between a
thermostat and the unit: 18 GA up to 60 ft (18.3m), 16 GA up to
100 ft. (30.5m), and 14 GA up to 140 ft. (42.7m).
UNIT START--UP
If the unit utilizes the Communicating User Interface, reference
information in the User Interface Quick Setup section.
Non--communicating thermostats:
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Set the thermostat to the highest setting.
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Set the thermostat system switch to “COOL”, and the fan switch
to the “AUTO” position. The reversing valve solenoid should
energize. The compressor and fan should not run.
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Reduce the thermostat setting approximately 5 degrees below
room temperature.
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Verify the heat of rejection is within 10% of the product data for
conditions the unit is started under in cooling mode.
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Turn the thermostat system switch to the “OFF” position. The unit
should stop running and the reversing valve should de--energize.
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Leave the unit off for approximately five (5) minutes to allow for
system equalization.
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Turn the thermostat to the lowest setting.
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Set the thermostat switch to “HEAT”.
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Increase the thermostat setting approximately five (5) degrees
above room temperature.
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Verify the unit heat of extraction is within 10% of the unit product
data information when started in the heating mode of operation.
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Set the thermostat to maintain desired space temperature.
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Check for vibrations, leaks, etc.
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It is suggested that a start up / commissioning form be completed
for each new installation. This document should be kept at both
the job site and with the project folder of the installing contractor
if needed to refer back to.
USER INTERFACE QUICK SET--UP
Install only approved thermostats per the unit Product Data.
Communicating geothermal units require UI software version 13 or
later. Read and Understand the thermostat Installation Instructions,
this start--up is not intended to replace the thermostat Installation
Instructions.
Install each component per unit Installation Instruction. Wire each
accordingly.
Enter the service and installation screens in the UI
Upon powering up the system, the user interface installation will
seek out the control boards in the unit and recognize the unit model
and size and communicating electric heat, if installed.
Component search order:
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Indoor (ECM is the indoor if GC model)
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Outdoor (UPM)
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SAM if applicable
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Zoning if applicable
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Any non--com components via selectable screens.
Run set up to select specific features desired such as UPM switch
settings (brownout, lockout and freeze protection).
