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ELECTRIC HEATER
PART NUMBER
CRHEATERXXXXXX
102A00
104B00
105A00
104B00,104B00
104B00,105A00
102A00
104B00
105A00
104B00,104B00
104B00,105A00
102A00
104B00
105A00
104B00,104B00
104B00,105A00
106A00
108A00
109A00
108A00,108A00
108A00,109A00
106A00
108A00
109A00
108A00,108A00
108A00,109A00
106A00
108A00
109A00
108A00,108A00
108A00,109A00
LEGEND:
CO ---
Convenient outlet
DISC
---
Disconnect
FLA
---
Full load amps
IFM
---
Indoor fan motor
LRA
---
Locked rotor amps
MCA
---
Minimum circuit amps
MOCP
---
Maximum over current protection
PE
---
Power exhaust
UNPWRD CO
---
Unpowered convenient outlet
NOTES:
1. In compliance with NEC requirements for multimotor and combina-
tion load equipment (refer to NEC Articles 430 and 440), the
overcurrent protective device for the unit shall be fuse or HACR
breaker. Canadian units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage
is greater than 2%. Use the following formula to determine the
percentage of voltage imbalance.
max voltage deviation from average voltage
% Voltage Imbalance
= 100 x
Table 3 – Table 10 Unit Electrical Data (cont)
NOM
APPLICATION
(kW)
(kW)
NO P .E. w/ P .E. (pwrd fr/unit) NO P .E.
6.5
4.9/6.0
10.5
7.9/9.6
16.0
12.0/14.7
21.0
15.8/19.3
26.5
19.9/24.3
6.5
4.9/6.0
10.5
7.9/9.6
16.0
12.0/14.7
21.0
15.8/19.3
26.5
19.9/24.3
6.5
4.9/6.0
10.5
7.9/9.6
16.0
12.0/14.7
21.0
15.8/19.3
26.5
19.9/24.3
6.0
5.5
11.5
10.6
14.0
12.9
23.0
21.1
25.5
23.4
6.0
5.5
11.5
10.6
14.0
12.9
23.0
21.1
25.5
23.4
6.0
5.5
11.5
10.6
14.0
12.9
23.0
21.1
25.5
23.4
average voltage
SINGLE POINT OR JUNCTION KIT PART NUMBER
CRSINGLE***A00
NO C.O. or UNPWRD C.O.
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038
038
038
038
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038
038
038
038
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038
038
038
038
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Example: Supply voltage is 230-3-60
AB = 224 v
BC = 231 v
AC = 226 v
(224 + 231 + 226)
Average Voltage =
=
227
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3 v
. . . . . . . . . .
(BC) 231 – 227 = 4 v
. . . . . . . . . .
% Voltage Imbalance
= 100 x
= 1.76%
This amount of phase imbalance is satisfactory as it is below the maximum
allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, con-
tact your local electric utility company immediately.
23
w/PWRD C.O.
w/ P .E. (pwrd fr/unit)
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038
038
038
038
038
038
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038
038
038
038
038
038
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038
038
038
038
038
038
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681
=
3
3
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
4
227
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