16
228 =1v
229 =2v
227 =2v
LEGEND
FLA — Full Load Amps
LRA — Locked Rotor Amps
MCA -- Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
RLA — Rated Load Amps
NO TES:
1. In compliance with NEC (National Electrical Code) requirements
for multimotor and combination load equipment (refer to NE C
Articles 430 and 440), the overcurrent protective device for the
unit shall be Power Supply fuse. The CGA (Canadian Gas
Association) units may be fuse or circuit break er.
2. Minimum wire size is based on 60 C copper wire. I f other than
60 C wire is used, or if length exceeds wire length in table,
determine siz e 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
max voltage deviation from average voltage
= 100 x
average voltage
EXAMPLE: Supply voltage is 230-3-60.
AB = 228 v
BC = 231 v
AC = 227 v
228 + 231 + 227
Average Voltage =
3
686
=
3
= 229
Determine maximum deviation from average voltage.
(AB) 229 -
(BC) 231 -
(AC) 229 -
Maximum deviation is 2 v.
Determine percent of voltage imbalance.
2
% Voltage Imbalance = 100 x
229
= 0.8%
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.
®
*
Heater capacity (kW) based on heater voltage of 208v & 240v.
If power distribution voltage to unit varies from rated heater
volta
e, heater kW will var
accordin
l
.
o
o
C03014
Fig. 18 -- Electrical Data Table Legend
Table 6—Dry Coil Air Delivery* Horizontal Discharge
(Deduct 10 percent for 208 Volt Operation)
230 VOLT HORIZONT AL DISCHARGE
UNIT
SIZE
SPEED
TAP
AIR
DELIVERY
EXTERNAL STATIC PRESSURE (IN.WG)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
024
1
Watts — 99 100 118 130 142 — — — —
CFM — 848 793 757 698 632 — — — —
2
Watts — — — — — 222 233 244 257 260
CFM — — — — — 970 918 861 795 729
030
2
Watts — 155 146 157 170 — — — — —
CFM — 1108 995 951 884 — — — — —
3
Watts — — — — — 261 275 286 291 315
CFM — — — — — 1117 1053 1014 980 877
036
1
Watts 180 166 179 191 204 216 — — — —
CFM 1344 1215 1 172 1136 1095 1051 — — — —
2
Watts — — — 261 276 290 301 316 329 342
CFM — — — 1343 1304 1272 1234 1190 1148 1100
042
3
Watts 269 283 305 321 336 349 360 — — —
CFM 1440 1404 1369 1333 1301 1273 1239 — — —
4
Watts — — 418 432 450 465 480 490 503 518
CFM — — 1572 1543 1504 1475 1441 1418 1380 1332
048
1
Watts — 204 209 216 229 236 249 — — —
CFM — 1129 1087 1027 994 932 881 — — —
2
Watts — — 233 245 254 266 276 289 — —
CFM — — 1164 1122 1066 1025 954 906 — —
3
Watts 386 398 409 418 425 435 438 441 451 —
CFM 1680 1652 1625 1583 1555 1515 1477 1444 1403 —
4
Watts — 440 448 457 462 469 477 480 485 486
CFM — 1745 1717 1684 1651 1612 1573 1537 1508 1470
060
1
Watts 224 235 251 266 277 291 298 — — —
CFM 1334 1288 1259 1224 1181 1157 1117 — — —
2
Watts — — 286 301 311 325 333 344 370 —
CFM — — 1333 1296 1261 1232 1199 1170 1062 —
3
Watts 608 626 643 660 668 685 697 — — —
CFM 1931 1900 1878 1844 1817 1789 1755 — — —
4
Watts 737 755 770 787 799 817 826 812 782 —
CFM 2093 2061 2028 2001 1971 1934 1899 1850 1757 —
*Air delivery val ues ar e based on operating voltage of 230v, wet coil, without f ilter or electric heater. Deduct filter an d el ectric heater pressure drops to obtain
static pressure available for ducting.
NOTES:
1. Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. E vaporator coil frosting may occuratair-
flows below this point.
2. Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended.
50ZPA
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