Reznor R8HE Unit Installation Manual - Manual (Page 10)

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Figure 4. Refrigerant Service Ports & Air
Conditioning Condensate Drain Locations
HIGH SIDE
LOW SIDE
CONDENSATE
DRAIN
Securing
Screws
Figure 5. Internal Filter Rack Location
Table 1. External & Internal Filter Sizes
EXTERNAL FILTER SIZES
NOMINAL
COOLING
(TONNAGE)
FILTER SIZE
(IN. X IN.)
APPROXIMATE
AIR FLOW
RANGE (CFM)
APPROXIMATE
FILTER AREA
(SQ. IN.)*
2.0 20 x 25 600-900 450
2.5 20 x 30 750-1200 550
3.0 25 x 25 1100-1300 625
3.5 24 x 30 1200-1600 750
4.0 18 x 24 (2 required) 1400-1800 850
5.0 20 x 25 (2 required) 1700-2200 1000
INTERNAL FILTER SIZES
CABINET
HEIGHT
OUTDOOR
FAN
DIAMETER
FILTER SIZE
(IN. X IN.)
APPROXIMATE
AIR FLOW
RANGE (CFM)
APPROXIMATE
FILTER AREA
(SQ. IN.)*
30”
20 (2) 14”x25”
700 - 1300
700
24” (1) 12”x20” and (1) 16”x25” 640
34”
20 (2) 16”x25”
900 - 1400
800
24” (1) 12”x20” and (2) 10”x25” 740
38”
20” (2) 18”x25”
1100 - 1600
900
24” (1) 12”x20” and (2) 12”x25” 840
42”
20” (2) 20”x25”
1300 - 1800
1000
24” (1) 12”x20” and (2) 14”x25” 940
* Based on velocity of 300 ft/min for disposable filters.