9
I-EEDU (02-21) 150492-A
INSTALLATION
Unpacking and Inspection
•
The unit was test-operated and inspected at the factory prior to crating and was in operating condition .
•
If, upon removing it from its crate, the unit has been found to have incurred any damage in shipment, document
the damage with the transporting agency and contact an authorized Factory Distributor . If you are an authorized
Distributor, follow the FOB freight policy procedures .
⚠ CAUTION ⚠
Ensure that EXCESSIVE shipping vibration has not caused the burner rack assembly to drop off
the support rails into the bottom pan.
•
Remove the panel from the bottom rear of the furnace (refer to
Burner Rack and Pilot Maintenance
check the burner rack assembly . The burner rack drawer should be setting level with each side on a support rail .
If the burner rack assembly is positioned properly, close the back panel .
•
If the burner rack has fallen, remove the screws holding the burner rack assembly and pull out the burner rack
drawer . Reassemble by sliding the burner rack drawer into the heater, ensuring that both sides are resting on
the support rails . Reattach to the support brackets underneath the burners, reinsert the burner rack screws, and
close the back panel .
Pre-Installation Checklist
Check the rating plate for the gas specifications and electrical characteristics of the furnace to ensure that they
are compatible with the gas and electric supplies at the installation site .
Read this booklet and become familiar with the installation requirements of your particular furnace .
If you do not have knowledge of local requirements, check with the local gas company or any other local agencies
who might have requirements concerning this installation .
Before beginning, make preparations for necessary supplies, tools, and manpower .
Check to see if there are any field-installed options that need to be assembled/installed prior to unit installation .
Shipped-separate options could include a gas shutoff valve, a vent cap, a condensate drain fitting, a
thermostat, a hanger kit, a coupling kit, and/or a fan control .
Some gas control options will either have parts shipped loose with the unit or shipped separately . If the unit is
equipped with any of the options listed in
, ensure that these parts are available at the installation site .
Table 6. Gas Control and Makeup Air Control Options
Type
Option
Included Components (PN)
Gas control (heating)
AG7
Amplifier (260863), thermostat (48033)
Makeup air control
*
AG3
Control switch (29054), gasket (7726), gasket retainer plate (7727)
AG8
Temperature sensor and mixing tube (48041), amplifier (260864), control switch (29054)
AG9
Remote temperature selector (48042), temperature sensor and mixing tube (48041), amplifier (260863),
control switch (29054)
AG15
Remote temperature selector (115848), stage adder module (115849), control switch (29054), 115-24V
(103055), 208/230-24V transformer (103497), 1/2-inch transformer locknut (16222), discharge sensor
holder (115850), discharge air sensor holder bracket (213612), temperature sensor (115815)
AG21
Signal conditioner (134170), conditioner relay (14747), 115-24V transformer (103055), 1/2-inch
transformer locknut (16222), fuse box (12697), fuse box cover (12698), hole plugs—quantity three
(16451)
*
All of the makeup air options also require a shipped-separate fan control (option CQ1, PN 57960), which should be at the job site .
