Specification Sheet

Air
Airflow Performance Data
RHLL Series
7
Airflow Performance
Airflow performance data is based on cooling performance
with a coil and no filter in place. Select performance table for
appropriate unit size, voltage and number of electric heaters to
be used. Make sure external static applied to unit allows oper-
ation within the minimum and maximum limits shown in table
below for both cooling and electric heat operation. For opti-
mum blower performance, operate the unit in the .3 [8 mm] to
.7 inches [18 mm] W.C. external static range. Units with coils
should be applied with a minimum of .1 inch [3 mm] W.C.
external static range.
Airflow Operating Limits
Model Cabinet Size 17 17/21
Cooling BTUH x 1,000
Cooling Tons Nominal
-018
1.5
-024
2
-030
2.5
-036
3
-042
3.5
-048
4
-048
4
Heat Pump or Air Conditioning
Maximum Heat/Cool CFM [L/s]
(37.5 CFM [18 L/s]/1,000 BTUH)
(450 CFM [212 L/s]/Ton Nominal)
675
[319]
900
[425]
1125
[531]
1350
[637]
1575
[743]
1800
[850]
1800
[850]
Heat Pump or Air Conditioning
Nominal Heat/Cool CFM [L/s]
(33.3 CFM [16 L/s]/1,000 BTUH)
(400 CFM [189 L/s]/Ton Nominal)
600
[283]
800
[378]
1000
[472]
1200
[566]
1400
[661]
1600
[755]
1600
[755]
Heat Pump or Air Conditioning
Minimum Heat/Cool CFM [L/s]
(30.0 CFM [14 L/s]/1,200 BTUH)
(360 CFM [170 L/s]/Ton Nominal)
540
[255]
720
[340]
900
[425]
1080
[510]
1260
[595]
1440
[680]
1440
[680]
Maximum kW Electric Heating
& Minimum Electric Heat CFM [L/s]
13
487 [230]
13
617 [291]
18
814 [384]
18
1054 [497]
20
1171 [553]
25
1502 [709]
25
1502 [709]
Maximum Electric Heat Rise °F [°C] 80 [26.7] 63 [17.2] 66 [18.9] 51 [10.6] 49 [9.4] 50 [10] 50 [10]
24
-060
5
1930
[911]
1800
[850]
1620
[765]
30
1666 [786]
54 [12.2]52 [11.1]
18
1042 [492]
1080
[510]
1200
[566]
1350
[637]
-038
3.5
21
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