Engineering Guide
Space Saver
24
Subject to change without notice.
20.3-TD (1018)
Hot Water Coils
Steam Heating Correction Factors
Entering Air
Deg. F
Steam Pressure
1
2
5
10
40
1.165
1.180
1.230
1.290
60
1.035
1.065
1.115
1.175
65
1.000
1.023
1.073
1.143
70
0.965
0.980
1.030
1.110
Control Wire Sizes
Wire Size
1
AWG. Gauge
22
20
19
18
16
40
120
150
190
305
Maximum Wire Length
2
Feet
(1) Solid, Class 11 copper wire
(2) Based on a voltage drop of 1�2 volts per wire�
(3) Total wire length is from unit to room thermostat, and back to unit
Application Data (a)
Voltage Variation
208/230
460
187/253
414/504
Cooling (b)
(Air Over Evap.)
DB (min./max.)
65/110
WB (min./max.)
57/72
Water-Cooled
GPM/Ton (min./max.)
2.5/3.5
Leaving Water Temp.
60/115
(min./max.)
(a) Dependent upon specific application, some additional refrigerant circuit
considerations may be required�
(b) Not all combinations may be valid�
Minimum Service Access Requirements
Access panels are provided on the front of the unit�
Tons
Front
Side (a)
2 - 15
36"
24"
(a) Some options and unit arrangements may require side access