Airmark GAW18 Installation & Operating Instructions Manual Download Page 2

 

 

 

 

 

IO-123084-GAW-063017 

- 2 - 

©2017 AirMark 

 

Safety Instruction 

Potential safety hazards are alerted using 

  

 

symbol. 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. 

 

CAUTION

  This symbol indicates a potentially 

hazardous situation which if not avoided, 

may

 

result in moderate injury or property damage. 
 

WARNING

 

Certified technicians or those 

individuals meeting the requirements specified 
by NATE may use this information. Property 
and product damage or personal injury hazard 
may occur without such background.     

 

WARNING

 

All

  power sources should be 

disconnected prior to servicing. Failure to do so 
may cause personal injury or property damage. 

 

WARNING

 

Product designed and 

manufactured to permit installation in accordance 
with local and national building codes. It is the 
installer’s responsibility to ensure that product is 
installed in strict compliance with national and 
local codes. Manufacturer takes no responsibility 
for damage (personal, product or property) caused 
due to installations violating regulations. In 
absence of local/state codes, refer to 

National 

Electric Code: NFPA 90A & 90B  Uniform 
Mechanical Code. 

 

WARNING

  When this unit is installed in an 

enclosed 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. 

 

CAUTION

  Only factory authorized kits and 

accessories should be used when installing or 
modifying this unit unless it is so noted in these 
instructions. Some localities may require licensed 
installer/service personnel. 
 

WARNING

  Unit is not approved for outdoor 

installations.  

 

WARNING

  The unit is designed for operation 

with 208/240 V, single phase, 60 Hz power supply. 

Airmark  will not be responsible for damages 
caused due to modification of the unit to operate 
with alternative power sources. 

 

Inspection  

On receiving the product, visually inspect it for any 
major shipping related damages. Shipping 
damages are the carrier’s responsibility. Inspect 
the product labels to verify that the model number 
and options are in accordance with your order. 
Manufacturer will not accept damage claims for 
incorrectly shipped product. 

 

Installation Preparation 

Read all the instructions in this guideline carefully 
while paying special attention to the WARNING 
and CAUTION alerts. If any of the instructions are 
unclear; clarify with certified technicians. Gather all 
the tools needed for successful installation of the 
unit prior to beginning the installation.  

 

This unit is designed for zero clearance installation 
on three sides and adequate clearance to provide 
access for service  in the front. A min of 2.5 –  3.5 
feet clearance is recommended on the front end.  

 

These units are designed to be installed on top of 
a water heater or recessed into a wall. The unit 
should be installed in Vertical Upflow position 

ONLY

. While installing the unit into a recessed 

wall, attach unit to 

"

4

"

2

×

  framing stud along the 

front flange. These air handlers are provided with 
an offset hanging bracket at the rear for certain 
wall mount applications.   

 

The drain lines must be installed with ¼” per foot 
pitch to provide free drainage. A condensate trap 

MUST

  be installed on the primary drain line to 

ensure proper drainage of the condensate. The 
trap must be installed in the drain line below the 
bottom of the drain pan. Figure 1 illustrates the 
typical drain trap installation.  
 
These units are equipped with a bottom primary 
and secondary drain and a single side primary OR 
secondary. When utilizing the unit, disable switch 
on the secondary line. It must be located on the 
side connection to avoid a false shutdown created 
by condensate droplets falling into the bottom 
secondary connection. The switch should be 
adjusted to permit normal operation of the unit and 
disable the unit in the event of a clogged primary 
before the condensate spills over the pan. In lieu 
of this a hood may be field fabricated to slide over 

Summary of Contents for GAW18

Page 1: ..._________________ SERIAL ____________________________________________________ INSTALLER __________________________________________________ INSTALLATION DATE _________________________________________ T...

Page 2: ...modification of the unit to operate with alternative power sources Inspection On receiving the product visually inspect it for any major shipping related damages Shipping damages are the carrier s re...

Page 3: ...determined by the designer of the duct system and should not necessarily be the size of the duct flange openings of the unit These models have a bottom or front return Discard the drain access panel...

Page 4: ...poor system performance and possible compressor damage During some installations a piston change may be required If so the installer MUST change the piston As stated earlier use piston sizes recommend...

Page 5: ...tion of the TXV bulb has a major influence on the system performance CAUTION Ensure that the TXV bulb is in direct contact with the suction vapor line Gaps between the bulb and tube should be avoided...

Page 6: ...box and note the location of the inlet side threaded male port and the outlet side female swivel nut port 6 After ensuring that the white Teflon seal is still in place inside the flowrator body screw...

Page 7: ...10 kW are arranged for multi circuit protection Fig 7 shows the typical electrical connections required for the air handler unit Fig 7 Typical electrical connections required System Charging CAUTION...

Page 8: ...et and outlet For outlet measure temperature of each main trunk at a location far enough away to avoid heater radiation and read the average temperatures Table 3 below shows the CFM that should be ach...

Page 9: ...current protection in the form of circuit breakers Have your contractor identify the circuits and the location of over current protection so that you will be in a position to make inspections or repla...

Page 10: ...IO 123084 GAW 020113 2013 AirMark WARNING HIGH VOLTAGE disconnect all power sources prior to servicing Failure might lead to safety hazard Wiring diagram for GAW models...

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