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127421-YIM-C-0606
22
Unitary Products Group
FACTORY INSTALLED OPTIONS/
FIELD INSTALLED ACCESSORIES
ELECTRIC HEAT ACCESSORY
Electric heaters are available as field installed accessories.
Refer to electric heat instructions for installation. These heat-
ers mount in the heat compartment with the heating elements
extending into the supply air chamber. All electric heaters are
fused and intended for use with single point power supply.
ELECTRIC HEAT OPTION
The factory-installed heaters are wired for single point power
supply. Power supply need only be brought into the single
point terminal block.
These CSA approved heaters are located within the central
compartment of the unit with the heater elements extending
into the supply air chamber.
Fuses are supplied, where required, by the factory. Some kW
sizes require fuses and other do not. Refer to Table 20 for
minimum CFM limitations and to Tables 9 through 18 for elec-
trical data.
TABLE 19: PHYSICAL DATA
Component
Model
078
090
102
120
150
Evaporator Blower
Blower, Centrifugal (Dia. X Wd. in.)
15x15
12 x 12
15x15
15 x 15
15 x 15
Motor, Standard (HP)
1-1/2
2
2
2
3
Motor, Optional (HP)
2
3
3
3
5
Evaporator Coil
Rows
3
3
3
4
4
Fins per Inch
15
15
15
15
15
Height (in.)
40
32
40
40
40
Face Area (ft.
2
each)
13.2
10.6
13.2
13.2
13.2
Condenser Fan
(2 per Unit)
Propeller Dia. (in., each)
24
24
24
24
24
Motor (HP, each)
1/3
1/3
3/4
3/4
3/4
CFM, Nominal (each)
1700
1700
2200
2200
2200
Condenser Coil
(2 per unit)
Rows (each)
1
2
2
2
2
Fins per Inch
20
20
20
20
20
Height (in., each)
44
36
44
44
44
Face Area (ft.
2
each)
14.5
11.9
14.5
14.5
14.5
Refrigerant Charge
System 1 (lb./oz.)
18/0
12/0
13/8
15/4
12/12
System 2 (lb./oz.)
N/A
12/0
13/8
15/4
12/12
Compressors
Quantity
1
2
2
2
2
Type
Scroll
Recip
Recip
Recip
Scroll
Air Filters
Size (Wd. x Ht. x Thickness in.)
25x20x2
25x16x2
25x20x2
25x20x2
25x20x2
Number Per Unit
4
4
4
4
4
TABLE 20: ELECTRIC HEAT MINIMUM SUPPLY AIR
HEATER
UNIT MODEL SIZE, NOMINAL TONS
kW
VOLTAGE
6.5
7.5
8.5
10
12.5
MINIMUM SUPPLY AIR CFM
9
208/230
1950
2250
2550
N/A
N/A
18
1950
2250
2550
3000
3750
24
1950
2250
2550
3000
3750
36
1950
2250
2550
3000
3750
54
N/A
N/A
N/A
3500
4000
9
480
1950
2250
2550
N/A
N/A
18
1950
2250
2550
3000
3750
24
1950
2250
2550
3000
3750
36
1950
2250
2550
3000
3750
54
N/A
N/A
N/A
3000
3750
9
600
1950
2250
2550
N/A
N/A
18
1950
2250
2550
3000
3750
24
1950
2250
2550
3000
3750
36
1950
2250
2550
3000
3750
54
N/A
N/A
N/A
3500
3750