Installation guide

EXAMPLE: Supply voltage is 460-3-60.
LEGEND LIP_I_US A B C AB=452V
(_ BC = 464 v
FLA -- Full Load Amps l_ AC = 455 v
LRA -- Locked RotorAmps Average Voltage = 452 + 464 + 455
MCA -- Minimum Circuit Amps 3
MOCP -- Maximum Overcurrent Protection
RLA -- Rated Load Amps = 137"1
CKT BKR -- Circuit Breaker 3
= 457
NOTES:
1. In compliance with NEC (National Electrical Code) requirements
for multimotor and combination load equipment (refer to NEC
Articles 430 and 440), the overcurrent protective device for the
unit shall be Power Supply fuse. Canadian units may be
fuse or circuit breaker.
2. Minimum wire size is based on 60 C copper wire. If other than
60 C wire is used, or if length exceeds wire length in table,
determine size from NEC.
3. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply volt-
age is greater than 2%. Use the following formula to determine
the percentage of voltage imbalance.
% Voltage imbalance
= 100 x max voltage deviation from average voltage
average voltage
Determine maximum deviation from average voltage.
(AB) 457 452=5v
(BC) 464 457=7v
(AC) 457 455=2v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
7
% Voltage Imbalance = 100 x --
457
= 1.53%
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%, contact your local electric utility company
immediately.
C99024
Table 4iLegend
VOLTAGE
UNIT RANGE
SIZE V-PH-HZ
PY2P Min Max
024 208/23(_1-60 187 253
208/230-1-60 187 253
030
208/230-3-60 187 253
208/230-1-60 187 253
036 208/230-3-60 187 253
460-3-60 414 506
208/230-1-60 187 253
042 208/23(_3-60 187 253
460-3-60 414 506
208/230-1-60 187 253
048 208/230-3-60 187 253
460-3-60 414 506
208/230-1-60 187 253
060 208/230-3-60 187 253
460-3-60 414 506
Table 5iElectrical DataiUnit PY2P
COMPRESSOR
RLA LIRA
10.9 54.0
13.5 73.0
9.0 63.0
16.7 97.0
11.2 75.0
5.4 37.5
17.9 104.0
12.4 88.0
6.1 44.0
23.4 126.0
13.0 93.0
6.4 46.5
28.8 169.0
17.3 123.0
9.0 62.0
OUTDOOR FAN
MOTOR
FLA
0.9
0.8
0.8
0.8
0.8
0.9
1.6
1.6
0.9
1.5
1.5
0.9
1.6
1.6
0.9
INDOOR FAN POWER SUPPLY
MOTOR
Max Fuse or
FLA MCA Ckt Bkr
2.0 15.7 25
2.1 19.8 30
2.1 14.2 20
3.6 25.3 40
3.6 18.4 25
1.9 9.6 15
4.1 28.1 45
4.1 21.2 30
2.0 10.5 15
4.1 34.9 45
4.1 21.9 30
1.9 10.8 15
6.2 43.8 60
6.2 29.4 45
3.2 15.4 20
PRE-START*UP
WARNING: Failure to observe the following warnings could result in serious injury:
1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system.
2. Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured.
3. Do not remove compressor terminal cover until all electrical sources are disconnected.
4. Relieve and recover all refrigerant from system before touching or disturbing anything inside terminal box if refrigerant
leak is suspected around compressor terminals.
5. Never attempt to repair soldered connection while refrigerant system is under pressure.
6. Do not use torch to remove any component. System contains oil and refrigerant under pressure. To remove a component,
wear protective goggles and proceed as follows:
a. Shut off gas supply and then electrical power to unit,
b. Relieve and recover all refrigerant from system using both high- and low-pressure ports,
c, Cut component connecting tubing with tubing cutter and remove component from unit.
d. Carefully unsweat remaining tubing stubs when necessary, Oil can ignite when exposed to torch flame,
Proceed as follows to inspect and prepare the unit for initial startup:
I. Remove access panel.
2. Read and follow instructions on all WARNING, CAUTION, and INFORMATION labels attached to, or shipped with, unit.
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