Start-Up; General - Carrier Omnizone 50XCR06 Installation, Start-Up And Service Instructions Manual

START-UP

CAUTION
To prevent injury, ensure that ducting or wire fan guards
are installed on the condenser fan before starting the unit.
Complete the start up checklist on page CL-1
General —
before attempting system start-up.
1. Set indoor thermostat system switch to OFF position.
2. Check all electrical connections, fuses, starter and pres-
sure control resets.
CFM 0.00 0.10
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1500 477 0.19 542
1600 509 0.23 570
1700 540 0.27 598
1800 572 0.32 627
1900 604 0.38 656
2000 636 0.44 685
2100 668 0.51 715
2200 699 0.59 744
2300 731 0.67 774
2400 763 0.76 804
2500 795 0.86 835
2600 826 0.97 865
2700 858 1.09 895
2800 890 1.21 926
2900 922 1.35 956
CFM 1.00 1.10
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1500 997 0.92 1039 1.02 1080 1.12 1119 1.22 1158 1.33 1195 1.44 1232 1.55 1268 1.67 1303 1.79 1338 1.92
1600 1008 0.99 1049 1.08 1088 1.18 1127 1.29 1165 1.40 1201 1.51 1237 1.62 1273 1.74 1307 1.86 1341 1.99
1700 1020 1.05 1060 1.15 1098 1.26 1136 1.36 1173 1.47 1209 1.58 1244 1.70 1279 1.82 1313 1.94
1800 1033 1.13 1072 1.23 1110 1.33 1147 1.44 1183 1.55 1218 1.66 1252 1.78 1286 1.90
1900 1048 1.21 1086 1.31 1122 1.42 1158 1.53 1193 1.64 1228 1.75 1262 1.87 1295 1.99
2000 1063 1.30 1100 1.40 1136 1.51 1171 1.62 1205 1.73 1239 1.85 1272 1.97
2100 1080 1.39 1116 1.50 1151 1.61 1185 1.72 1219 1.84 1252 1.95
2200 1098 1.50 1132 1.61 1166 1.72 1200 1.83 1233 1.95
2300 1116 1.61 1150 1.72 1183 1.83 1216 1.95
2400 1135 1.73 1168 1.84 1201 1.96
2500 1155 1.86 1187 1.97
2600 1175 1.99 —
2700 — — —
2800 — — —
2900 — — —
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. Units are available with several motor hp options. Refer to
Table 1.
Table 6 — Evaporator Fan Performance — 50XCR06 Units
0.20 0.30
0.24 603 0.30 660 0.36
0.28 627 0.34 682 0.41
0.33 653 0.40 705 0.46
0.39 679 0.45 729 0.52
0.45 706 0.52 754 0.59
0.51 733 0.58 779 0.66
0.58 760 0.66 804 0.74
0.66 788 0.74 831 0.83
0.75 816 0.83 857 0.92
0.85 845 0.93 884 1.02
0.95 873 1.04 911 1.13
1.06 902 1.15 939 1.25
1.18 931 1.28 967 1.37 1002 1.47 1036 1.58 1069 1.68 1102 1.79 1134 1.91
1.31 961 1.41 995 1.51 1029 1.61 1062 1.72 1094 1.83 1126 1.94
1.45 990 1.55 1023 1.65 1056 1.76 1088 1.87 1119 1.98
1.20 1.30
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3. Set selector switch on thermostat to the ON position. Ad-
just evaporator fan speed. If an airflow is not specified,
use the nominal airflow from Table 2 and adjust the fan
speed to compensate for actual job conditions. Use
Tables 6-11 to determine proper fan speed.
4. Set thermostat at a setting below room temperature. Com-
pressor will start. If compressor suction pressure does not
drop and discharge pressure does not rise to normal levels
at start-up, reverse any 2 compressor power leads and re-
store power to ensure compressor was not wired to run in
reverse direction.
5. Set thermostat as desired.
ESP (in. wg)
0.40 0.50 0.60
714 0.43 766 0.50 816
734 0.48 784 0.55 832
755 0.54 803 0.61 849
777 0.60 823 0.68 868
800 0.67 844 0.75 887
823 0.74 866 0.83 908
847 0.82 888 0.91 929
872 0.91 912 1.00 951
897 1.01 935 1.10 973
922 1.11 960 1.21 996
948 1.22 985 1.32 1020 1.42 1055 1.53 1089 1.63 1122 1.74
975 1.35 1010 1.45 1044 1.55 1078 1.66 1111 1.77 1144 1.88
ESP (in. wg)
1.40 1.50 1.60
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2. Static pressure losses for any options or accessories must be
applied to external static pressure before entering the fan per-
formance table.
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on 1 in. standard throwaway filter,
unit casing, and wet DX (direct expansion) coil losses at sea
level.
12
0.70 0.80
0.58 864 0.66 910 0.74
0.63 878 0.71 923 0.80
0.69 894 0.78 937 0.87
0.76 911 0.85 953 0.94
0.83 929 0.92 970 1.01 1009 1.11
0.91 948 1.01 988 1.10 1026 1.20
1.00 968 1.09 1006 1.19 1044 1.29
1.09 989 1.19 1026 1.29 1062 1.39
1.20 1010 1.30 1046 1.40 1081 1.50
1.31 1032 1.41 1067 1.51 1101 1.62
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1.70 1.80
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0.90
954 0.83
966 0.89
979 0.96
994 1.03
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1.90
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