iAIRE ultraDRY Series, Manual

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THERMOSTAT
CONTROL
Uses a standard thermostat with a humidistat, a call for
cooling turns on Y1, a call for heating turns on W1, a call
for fan turns on fan. A humidity call (when there is no call for
cooling) will turn on Y1 and also engage the modulating hot
gas reheat valves.
GENERAL INSTRUCTIONS
An iAIRE’s operation is a function of the options and control
packages that the iAIRE unit is equipped with.
RECEIVING / INSPECTION
Check part # of iAIRE unit to ensure it is what was ordered.
Verify voltage/phases match.
At the time of delivery the iAIRE unit should be visually
inspected for possible damage. If any damage is found it
should be reported immediately to the last courier company,
preferably in writing. iAIRE recommends leaving the iAIRE
unit in its shipping packaging until the time of installation.
RIGGING
Utilize the Carrier factory information on rigging these units.
If you need help accessing this information, please contact
iAIRE customer service at:
sales@myiaire.com or 844-348-9168.
SAFETY CONSIDERATIONS
Installation and servicing of the iAIRE units can be hazardous
due to system, pressure, electrical components and moving
parts. Only trained and qualified service personnel should
install, repair or service these units.
When working on iAIRE or other HVAC units observe
precautions in the literature, tags and labels attached to the
units, and any other safety precautions that may apply.
Follow all local, national and industry electrical codes when
installing these units and accessories.
START-UP
SPACE / DISCHARGE AIR TEMP CONTROL PACKAGE
START-UP
Physical Inspection (pre power-up)
Check part # of iAIRE unit to ensure it is what was ordered.
Verify voltage/phases match.
1. Verify condition of unit and note any installation or shipping
damage to coils or cabinets.
2. Verify installation of condensate drain trap.
3. Verify power is available at disconnect and fuses are
installed if required. Check incoming power to make sure it
is within tolerance.
4. Verify that all airways are open. (Fire dampers and supply
air registers.)
5. Check blower belt tension. (if available)
6. Confirm that the space sensor is installed. (Space
Control units only, see wiring in figure “B” on installatoin
wiring diagram pages. Space Sensors must be wired using
shielded wire.
After power-up
1. Check incoming 3-phase power for a stinger leg if voltage is
208/230VAC. If so ensure that stinger leg (high voltage phase to
ground) is the center leg.
2. Go to thermostat and set both the heat and cool CFM. The heat
CFM is the VFD % in the heat mode that the AHU fan will run. The
cool CFM is the VFD % the AHU fan will run in all other modes.
3. Remove panel from outside air section and verify outside air
damper is fully open. Set adjustment thumb wheel on damper
motor for full opening. Check crank arms and ball joints on
damper mechanism allow damper to open fully.
Charging
1. Locate RCCD device in condenser section. Locate the
RCCD Device and close the ball valve. This will stop flow to the RCCD
Device
2. Disconnect 2-pin signal plug from Sporlan IB circuit board. This will
close the modulating hot gas valve to allow correct charging.
3. Invert refrigerant jug to provide liquid charge into suction line and
proceed to charge unit for 10 degrees of subcooling and 20 degrees
superheat. Depending on ambient conditions, evaporator leaving air
temperature should be between 48-58 ̊ F.
4. When charge is complete return signal connector to Sporlan IB
board and re-open Rawal ball valve.
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