Airmark GBW Series Installation Manual

Certified technicians or those individuals
WARNING
!
meeting the requirements specified by
NATE may use this information. Property
and product damage or personal injury hazard may occur
without such background.
All power sources should be disconnect-
! WARNING
ed prior to servicing. Failure to do so may
cause personal injury or property damage.
Product designed and manufactured to
! WARNING
permit installation in accordance with lo-
cal and national building codes. It is the
installer's responsibility to ensure that product is installed
in strict compliance with national and local codes. Manufac-
turer takes no responsibility for damage (personal, product
or property) caused due to installations violating regula-
tions. In absence of local/state codes, refer to National Elec-
tric Code: NFPA 90A & 90B Uniform Mechanical Code.
When this unit is installed in an enclosed
! WARNING
area, such as a garage or utility room with
any Carbon Monoxide producing devices
(i.e. automobile, space heater, water heater etc.) ensure that
the enclosed area is properly ventilated.
Only factory authorized kits and acces-
!
CAUTION
sories should be used when installing or
modifying this unit unless it is so noted in
these instructions. Some localities may require a licensed
installer/service personnel.
Unit is not approved for outdoor installa-
WARNING
!
tions.
The unit is designed for operation with
WARNING
!
108/120 V, single phase, 60 Hz power sup-
ply. Airmark will not be responsible for
damages caused due to modification of the unit to operate
with alternative power sources.
GBW & GFW Series - Vertical Wall
Mount Air Handler (Hydronic Heat)
1. Safety Instruction
Potential safety hazards are alerted using the following symbols. The symbol is used in conjunction with terms
that indicate the intensity of the hazard.
`
WARNING
! This symbol indicates a potentially hazardous situation, which if not avoided,
could result in serious injury, property damage, product damage or death.
!
This symbol indicates a potentially hazardous situation, which if not avoided,
CAUTION
may result in moderate injury or property damage.
INSTALLATION GUIDE
2. Ensure These Steps are Completed to Reduce
Chances of a Frozen Hydronic Coil
• Ensure the air handler motor and control board are receiving
proper power input per the wiring diagram.
• Ensure the hydronic coil has access to a constant water supply as
loss of water movement can lead to a frozen coil.
• Prime the water circulator pump using the purge valve per the
"Start-Up" section of this installation guide.
• Run the pump for five minutes after priming to ensure no air is in
the system.
• If any interruption to the water supply occurs, prime the water
circulator pump again.
• Insulate the water piping in unconditioned spaces or within
structures that may be unoccupied during freezing conditions.
• If the air handler does not have an internal pump and/or relies on
an external boiler system for hot water, the installer may need to
rewire the system to ensure that it maintains access to a constant
water supply.
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