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York GNA User Manual

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036-21145-003 Rev. A (0403)
4
Unitary Products Group
NOTE:
Do not exceed minimum/maximum CFM limits shown 
under Air Flow Data.
APPLICATION LIMITATIONS
These units must be installed in accordance with all national
and local safety codes.
Air flow must be within the minimum and maximum limits
approved for electric heat, evaporator coils and outdoor units. 
COOLING CAPACITY - COIL ONLY
*
MODEL COIL
RATED CFM ENTERING AIR °F (WET BULB)
MBH@ EVAPORATOR TEMPERATURE AND CORRESPONDING PRESSURE °F / PSIG
35 / 61.5
40 / 68.5
45 / 76.0
50 / 84.0
UNCASED UPFLOW
G1NA024S17G
800
72
27.4
25.0
22.3
19.4
67
25.3
22.9
20.3
17.5
62
20.8
18.4
15.9
13.4
57
16.9
14.6
12.2
9.4
G1NA030S17H
1000
72
35.2
32.0
28.6
24.8
67
32.4
28.6
25.3
21.9
62
26.6
23.6
21.5
18.7
57
25.2
22.7
20.2
17.6
G1NA030S17K
1000
72
39.6
36.0
32.1
27.9
67
36.4
33.2
29.5
25.7
62
29.9
27.2
24.2
21.0
57
28.1
25.6
22.7
19.8
G1NA036S17J
1200
72
49.3
44.9
39.9
34.7
67
45.4
41.3
36.7
32.0
62
37.2
33.8
30.1
26.2
57
35.0
28.3
28.3
24.6
G1NA036S17L
1200
72
59.9
54.5
48.5
42.6
67
55.1
51.1
44.6
38.9
62
45.2
41.1
36.6
31.9
57
42.5
38.7
34.4
30.0
G1NA036S21C
1200
72
49.3
44.9
39.9
34.7
67
45.4
41.3
36.7
32.0
62
37.2
33.8
30.1
26.2
57
35.0
31.8
28.3
24.6
G1NA042S24W
1400
72
86.7
73.0
59.2
44.9
67
69.4
57.2
45.2
33.1
62
54.0
42.3
33.4
26.8
57
46.4
40.0
33.4
26.8
G1NA048S21D
1400
72
62.4
56.8
50.5
44.4
67
57.4
53.2
46.5
40.5
62
47.1
42.8
38.1
33.2
57
44.3
40.3
35.8
31.2
G1NA060S24T
1800
72
95.4
82.1
68.4
54.0
67
76.4
64.1
52.2
39.9
62
59.6
47.4
38.6
32.4
57
51.2
44.8
38.6
32.4
*
See Condensing Unit or Heat Pump Technical Guide for Total Cooling Capacity and Sensible Capacity.
APPLICATION FACTOR-RATED 
CFM VS. ACTUAL CFM
% OF RATED AIR FLOW 80% 90% RATED CFM 110% 120%
CAPACITY FACTOR
0.96 0.98
1.00
1.02
1.03
ENTERING AIR TEMPERATURE LIMITS
WET BULB TEMP. ºF
DRY BULB TEMP. ºF
Min.
Max.
Min.
Max.
57
72
65
95