VIII. CONDENSER FANS AND MOTORS
Condenser fans and motors are factory set. Refer to
IX. RETURN-AIR FILTERS
Check that correct filters are installed in filter tracks (see Table 1). Do not operate unit without
NOTE: For units with
X. OUTDOOR-AIR INLET SCREENS
XI. GAS HEAT
Verify gas pressures before turning on heat as follows:
1.Turn off
2.Connect pressure gage to supply gas tap, located on
3.Connect pressure gage to manifold pressure tap.
4.Turn on
5.After the unit has run for several minutes, verify the supply gas pressure is between 5.5 in. wg and 13.0 in. wg. Provide a call for heating stage 2. Check manifold pressure after 5 minutes of stage 2 opera- tion. Manifold pressure should be 3.00 in. wg. If manifold pressure must be adjusted, refer to Gas Valve Adjustment section.
NOTE: Supply gas pressure must not exceed
13.0 in. wg.
6.Turn off unit.
7.Remove call for heat.
Table 5 — Fan Performance — 581A210 Low Heat Vertical Discharge Units*
AIRFLOW |
|
|
|
| AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) |
|
|
|
| ||||||
| 0.2 |
|
| 0.4 |
|
| 0.6 |
|
| 0.8 |
|
| 1.0 |
| |
(Cfm) |
|
|
|
|
|
|
|
|
|
| |||||
| Rpm | Watts | Bhp | Rpm | Watts | Bhp | Rpm | Watts | Bhp | Rpm | Watts | Bhp | Rpm | Watts | Bhp |
3500 | 460 | 591 | 0.68 | 548 | 774 | 0.89 | 623 | 951 | 1.09 | 692 | 1126 | 1.29 | 755 | 1301 | 1.50 |
4000 | 499 | 774 | 0.89 | 581 | 976 | 1.12 | 653 | 1170 | 1.35 | 717 | 1361 | 1.56 | 777 | 1551 | 1.78 |
4500 | 538 | 990 | 1.14 | 617 | 1212 | 1.39 | 685 | 1423 | 1.64 | 746 | 1630 | 1.88 | 803 | 1835 | 2.11 |
5000 | 579 | 1243 | 1.43 | 654 | 1485 | 1.71 | 719 | 1715 | 1.97 | 778 | 1938 | 2.23 | 832 | 2158 | 2.48 |
5500 | 621 | 1536 | 1.77 | 693 | 1798 | 2.07 | 755 | 2045 | 2.35 | 811 | 2285 | 2.63 | 864 | 2520 | 2.90 |
6000 | 664 | 1871 | 2.15 | 732 | 2152 | 2.48 | 792 | 2417 | 2.78 | 846 | 2673 | 3.07 | 897 | 2925 | 3.36 |
6500 | 707 | 2250 | 2.59 | 772 | 2550 | 2.93 | 830 | 2834 | 3.26 | 883 | 3106 | 3.57 | 932 | 3373 | 3.88 |
7000 | 751 | 2676 | 3.08 | 813 | 2994 | 3.44 | 869 | 3295 | 3.79 | 920 | 3585 | 4.12 | 967 | 3868 | 4.45 |
7500 | 795 | 3150 | 3.62 | 855 | 3487 | 4.01 | 909 | 3805 | 4.38 | 958 | 4112 | 4.73 | 1004 | 4411 | 5.07 |
8000 | 839 | 3676 | 4.23 | 897 | 4029 | 4.63 | 949 | 4366 | 5.02 | 997 | 4689 | 5.39 | 1042 | 5004 | 5.75 |
8500 | 884 | 4253 | 4.89 | 940 | 4625 | 5.32 | 990 | 4978 | 5.73 | 1037 | 5318 | 6.12 | 1080 | 5649 | 6.50 |
|
|
|
|
|
|
|
|
|
| ||||||
AIRFLOW |
|
|
|
| AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) |
|
|
|
| ||||||
| 1.2 |
|
| 1.4 |
|
| 1.6 |
|
| 1.8 |
|
| 2.0 |
| |
(Cfm) |
|
|
|
|
|
|
|
|
|
| |||||
| Rpm | Watts | Bhp | Rpm | Watts | Bhp | Rpm | Watts | Bhp | Rpm | Watts | Bhp | Rpm | Watts | Bhp |
3500 | 814 | 1476 | 1.70 | 871 | 1650 | 1.90 | 924 | 1825 | 2.10 | 975 | 1999 | 2.30 | 1023 | 2173 | 2.50 |
4000 | 834 | 1740 | 2.00 | 888 | 1930 | 2.22 | 939 | 2119 | 2.44 | 988 | 2308 | 2.65 | 1035 | 2497 | 2.87 |
4500 | 857 | 2039 | 2.35 | 909 | 2243 | 2.58 | 958 | 2446 | 2.81 | 1005 | 2650 | 3.05 | 1051 | 2853 | 3.28 |
5000 | 884 | 2376 | 2.73 | 933 | 2594 | 2.98 | 980 | 2811 | 3.23 | 1026 | 3028 | 3.48 | 1070 | 3244 | 3.73 |
5500 | 913 | 2753 | 3.17 | 960 | 2984 | 3.43 | 1006 | 3215 | 3.70 | 1049 | 3445 | 3.96 | 1092 | 3674 | 4.23 |
6000 | 945 | 3172 | 3.65 | 990 | 3417 | 3.93 | 1034 | 3662 | 4.21 | 1076 | 3905 | 4.49 | 1117 | 4147 | 4.77 |
6500 | 978 | 3636 | 4.18 | 1022 | 3895 | 4.48 | 1064 | 4153 | 4.78 | 1104 | 4409 | 5.07 | 1144 | 4665 | 5.37 |
7000 | 1012 | 4145 | 4.77 | 1055 | 4419 | 5.08 | 1095 | 4691 | 5.39 | 1135 | 4960 | 5.70 | 1173 | 5229 | 6.01 |
7500 | 1047 | 4703 | 5.41 | 1089 | 4992 | 5.74 | 1128 | 5277 | 6.07 | 1167 | 5561 | 6.40 | 1204 | 5842 | 6.72 |
8000 | 1084 | 5311 | 6.11 | 1124 | 5615 | 6.46 | 1163 | 5915 | 6.80 | 1200 | 6211 | 7.14 | 1236 | 6506 | 7.48 |
8500 | 1121 | 5972 | 6.87 | 1160 | 6290 | 7.23 | 1198 | 6604 | 7.60 | 1234 | 6914 | 7.95 | 1269 | 7223 | 8.31 |
LEGEND
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
*Motor drive ranges:
Low Range:
High Range:
Refer to page 23 for general Fan Performance Data notes.
NOTE: Maximum continuous bhp is:
Low Range: 4.25 (208/230 and
High Range: 5.75