Carrier 50ZH024-060 - Manual (Page 10)

Table 3 — Electrical Data
UNIT
50ZH
NOMINAL
V-PH-Hz
IFM
TYPE
VOLTAGE
RANGE
COMPRESSOR
OFM
FLA
IFM
FLA
HEATER
PACKAGE NO.
ELECTRIC
HEAT
POWER
SUPPLY
DISCONNECT
SIZE
Min Max RLA LRA
Nominal
kW*
FLA MCA MOCP FLA LRA
024 208/230-1-60 Std 187 254 12.8 63.0 0.9 2.4
None — — 19.3/ 19.3 25/ 25† 19/ 19 70/ 70
CPHEATER026A00 3.8/ 5.0 18.3/20.8 42.2/ 45.3 45/ 50† 40/ 42 89/ 91
CPHEATER024A00 7.5/10.0 36.1/41.7 64.4/ 71.4 70/ 80 60/ 66 107/112
030 208/230-1-60 Std 187 254 14.4 73.0 1.5 2.4
None — — 21.9/ 21.9 30/ 30† 21/ 21 83/ 83
CPHEATER026A00 3.8/ 5.0 18.3/20.8 44.8/ 47.9 45/ 50† 42/ 45 101/103
CPHEATER024A00 7.5/10.0 36.1/41.7 67.0/ 74.0 70/ 80 63/ 69 119/124
CPHEATER040A00 11.3/15.0 54.3/62.5 89.8/100.0 90/110 83/ 93 137/145
036
208/230-1-60 Std 187 254 17.7 93.0 1.5 2.8
None — — 26.4/ 26.4 35/ 35† 25/ 25 103/103
CPHEATER026A00 3.8/ 5.0 18.3/20.8 49.3/ 52.4 50/ 60† 46/ 49 121/123
CPHEATER024A00 7.5/10.0 36.1/41.7 71.6/ 78.6 80/ 80 67/ 73 139/144
CPHEATER040A00 11.3/15.0 54.3/62.5 94.3/104.6 100/110 88/ 97 157/165
208/230-3-60 Std 187 254 10.3 77.0 1.5 2.8
None — — 17.2/ 17.2 20/ 20† 17/ 17 87/ 87
CPHEATER029A00 3.8/ 5.0 10.5/12.0 30.3/ 32.2 35/ 35† 29/ 31 97/ 99
CPHEATER030A00 7.5/10.0 20.8/24.1 43.2/ 47.3 45/ 50† 41/ 45 107/111
CPHEATER032A00 11.3/15.0 31.4/36.1 56.4/ 62.3 60/ 70 53/ 58 118/123
042
208/230-1-60 Std 187 254 21.5 103.0 1.5 2.8
None — — 31.2/ 31.2 40/ 40† 30/ 30 113/113
CPHEATER026A00 3.8/ 5.0 18.3/20.8 54.1/ 57.2 60/ 60† 51/ 54 131/133
CPHEATER024A00 7.5/10.0 36.1/41.7 76.3/ 83.3 80/ 90 71/ 78 149/154
CPHEATER040A00 11.3/15.0 54.3/62.5 99.1/109.3 100/110 92/102 167/175
CPHEATER028A00 15.0/20.0 72.1/83.3 121.3/135.3 125/150 113/125 185/196
208/230-3-60 Std 187 254 12.4 88.0 1.5 2.8
None — — 19.8/ 19.8 25/ 25† 19/ 19 98/ 98
CPHEATER029A00 3.8/ 5.0 10.5/12.0 32.9/ 34.8 35/ 35† 31/ 33 108/110
CPHEATER030A00 7.5/10.0 20.8/24.1 45.8/ 49.9 50/ 50† 43/ 47 118/122
CPHEATER032A00 11.3/15.0 31.4/36.1 59.1/ 64.9 60/ 70 55/ 61 129/134
CPHEATER041A00 15.0/20.0 41.6/48.1 71.8/ 79.9 80/ 80 67/ 75 139/146
048
208/230-1-60 Std 187 254 28.2 129.0 1.5 4.2
None — — 41.0/ 41.0 50/ 50† 39/ 39 143/143
CPHEATER038A00 3.8/ 5.0 18.3/20.8 63.8/ 67.0 70/ 70 60/ 63 161/163
CPHEATER024A00 7.5/10.0 36.1/41.7 86.1/ 93.1 90/100 81/ 87 179/184
CPHEATER040A00 11.3/15.0 54.3/62.5 108.8/119.1 110/125 101/111 197/205
CPHEATER028A00 15.0/20.0 72.1/83.3 131.1/145.1 150/150 122/135 215/226
208/230-3-60 Std 187 254 13.5 99.0 1.5 4.2
None — — 22.6/ 22.6 30/ 30† 22/ 22 113/113
CPHEATER029A00 3.8/ 5.0 10.5/12.0 35.7/ 37.6 40/ 40† 34/ 36 123/125
CPHEATER030A00 7.5/10.0 20.8/24.1 48.6/ 52.7 50/ 60† 46/ 50 133/137
CPHEATER032A00 11.3/15.0 31.4/36.1 61.8/ 67.7 70/ 70 58/ 64 144/149
CPHEATER041A00 15.0/20.0 41.6/48.1 74.6/ 82.7 80/ 90 70/ 77 154/161
060
208/230-1-60 Std 187 254 27.7 170.0 3.1 6.2
None — — 43.9/ 43.9 60/ 60† 43/ 43 192/192
CPHEATER038A00 3.8/ 5.0 18.3/20.8 66.8/ 69.9 70/ 70 64/ 66 210/213
CPHEATER024A00 7.5/10.0 36.1/41.7 89.1/ 96.1 90/100 84/ 91 228/233
CPHEATER040A00 11.3/15.0 54.3/62.5 111.8/122.1 125/125 105/114 246/254
CPHEATER028A00 15.0/20.0 72.1/83.3 134.1/148.1 150/150 125/138 264/275
208/230-3-60 Std 187 254 15.9 124.0 3.1 6.2
None — — 29.2/ 29.2 35/35† 29/ 29 146/146
CPHEATER029A00 3.8/ 5.0 10.5/12.0 42.3/ 44.2 45/45† 41/ 43 156/158
CPHEATER030A00 7.5/10.0 20.8/24.1 55.2/ 59.3 60/60† 53/ 57 167/170
CPHEATER032A00 11.3/15.0 31.4/36.1 68.4/ 74.3 70/80 65/ 70 177/182
CPHEATER041A00 14.9/19.9 41.4/47.9 80.9/ 89.1 90/90 77/ 84 187/194
460-3-60 Std 414 508 8.0 60.0 1.5 3.2
None — — 14.7 20† 15 68
CPHEATER034A00 5.0 6.0 22.2 25† 22 74
CPHEATER035A00 10.0 12.0 29.7 30† 28 80
CPHEATER036A00 15.0 18.0 37.2 40† 35 86
CPHEATER037A00 20.0 24.1 44.8 45† 42 93
LEGEND
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM — Indoor-Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC
— National Electrical Code
OFM — Outdoor-Fan Motor
RLA — Rated Load Amps
*Heater capacity (kW) is based on heater voltage of 208 v, 240 v or 480 v. If
power distribution voltage to unit varies from rated heater voltage, heater kW
will vary accordingly.
†Fuse or HACR circuit breaker.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load
and equipment (refer to NEC Articles 430 and 440), the overcurrent pro-
tective device for the unit shall be fuse or HACR 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.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
Example: Supply voltage is 240-3-60
AB = 235 v
BC = 242 v
AC = 236 v
235 + 242 + 236
Average voltage =
3
= 238
Determine maximum deviation from average voltage:
(AB) 238 − 235 = 3 v
(BC) 242 − 238 = 4 v
(AC) 238 − 236 = 2 v
Maximum deviation is 4 v.
Determine percentage of voltage imbalance:
4
% Voltage imbalance = 100 x
238
= 1.68%
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.
10