36
S
TARTUP
P
ROCEDURE
& A
DJUSTMENT
600
800
1000
1200
1400
1600
2000
0453__XA
376*
384
480
576
---
---
---
0704__XA
---
---
627*
627*
672
768
---
0905__XA
---
---
---
836*
836*
836*
960
1155__XA
---
---
---
940*
940*
940*
960
600
800
1000
1200
1400
1600
2000
0704__XA
0714__XA
---
---
320*
320*
336
384
---
0905__XA
0915__XA
---
---
---
427*
427*
427*
480
In
put
_
_
A
ir
fl
ow
UPFLOW
COOLING AIRFLOW REQUIREMENT (CFM)
COUNTERFLOW
COOLING AIRFLOW REQUIREMENT (CFM)
In
pu
t
Ai
rf
lo
w
*Minimum filter area dictated by heating airflow requirement
.
Permanent Minimum Filter Area (sq. in)
[Based on a 600 ft/min filter face velocity]
600
800
1000
1200
1400
1600
2000
0453__XA
376*
384
480
576
---
---
---
0704__XA
---
---
564*
564*
672
768
0905__XA
---
---
---
752*
752*
768
960
1155__XA
---
---
---
940*
940*
940*
960
600
800
1000
1200
1400
1600
2000
0704__XA
0714__XA
---
---
641*
641*
672
768
---
0905__XA
0915__XA
---
---
---
854*
854*
854*
960
In
p
u
t_
_
A
ir
fl
o
w
UPFLOW
COOLING AIRFLOW REQUIREMENT (CFM)
COUNTERFLOW
COOLING AIRFLOW REQUIREMENT (CFM)
In
p
u
t
Ai
rf
lo
w
*Minimum filter area dictated by heating airflow requirement.
Disposable Minimum Filter area (sq. in)
[Based on 300 ft/min filter face velocity]
U
PRIGHT
I
NSTALLATIONS
Depending on the installation and/or customer preference, differ-
ing filter arrangements can be applied. Filters can be installed in
the central return register or a side panel external filter rack kit
(upflows). As an alternative a media air filter or electronic air cleaner
can be used as the requested filter.
The following figure shows possible filter locations.
FIL
T
E
R
AIR FLOW
CENTRAL
RETURN
GRILLE
FI
L
T
E
R
SIDE RETURN
EXTERNAL FILTER
RACK KIT
(EITHER SIDE)
Possible Upright Upflow
FIL
TER
AIR FLOW
CENTRAL
RETURN
GRILLE
RETURN
DUCT
FI
LT
E
R
FILTER
SUPPORT
BRACKET
(Field Supplied)
FILTER
ACCESS
DOOR
Possible Upright Counterflow
Filter Locations
H
ORIZONTAL
I
NSTALLATIONS
Filters must be installed in either the central return register or in
the return air duct work.
S
TARTUP
P
ROCEDURE
& A
DJUSTMENT
Furnace must have a 115 VAC power supply properly connected
and grounded. Proper polarity must be maintained for correct
operation. In addition to the following start-up and adjustment
items, refer to further information in
Operational Checks
section.
