Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1
10Table 2 — Electrical Data LEGEND*Used to determine minimum disconnect per NEC.†Fuse or HACR circuit breaker.NOTES:1. In
11Step 8 — Make Outdoor-Air Adjustments andInstall Outdoor-Air HoodMANUAL OUTDOOR-AIR DAMPER — The outdoor-airhood and screen are attached to the bas
12OPTIONAL DURABLADE ECONOMIZER — The op-tional economizer hood assembly is packaged and shipped inthe filter section. Damper blades and control boar
13BLOCK-OFF PLATEECONOMIZERCONTROLBOARDECONOMIZERPLUGECONOMIZERMOTORTOPSCREWBAROMETRICRELIEF DAMPERWIRINGHARNESSPOSITION SETTINGBRACKETU-SHAPEDHOLE(NO
14OPTIONAL ECONOMI$ER — See Fig. 25 for EconoMi$ercomponent locations.1. To remove the existing unit filter access panel, raise thepanel and swing the
155. Slide the outdoor-air inlet screens into the screen track onthe hood side panels. While holding the screens in place,fasten the screen retainer t
16OUTDOORAIRSENSORTEMPTEMPCOMOUTPWRBROWNVIOLETWHITEREDBROWNTEMPTEMPCOMOUTPWRRETURNAIRSENSORVIOLETWHITEREDOATCOMOAH-15 VRATCOMRAH+15 VECONOMI$ERCONTROL
174-PINCONNECTORPLUGL1L2GREEN11223344GND230 VAC1 PHASEGREEN/YELLOW3215869BA74LT. BLUEBLACKBROWNC1BLUEGREEN/YELLOW3215869BA74LT. BLUEBLACKBROWNC1BLUEFA
18CO2 Control Setup — If a CO2 sensor is not being used, pro-ceed to the next section. If a CO2 sensor is being used, performthe following:1. Determin
19Step 9 — Adjust Evaporator-Fan Speed — Ad-just evaporator-fan rpm to meet jobsite conditions. Table 5shows fan rpm at motor pulley settings. Table
2Curb should be level. Unit leveling tolerances are shown inFig. 3. This is necessary for unit drain to function properly. Re-fer to Accessory Roof Cu
20Table 5 — Fan Rpm at Motor Pulley Settings**Approximate fan rpm shown.†Indicates alternate motor and drive package.**Indicates high-static motor and
21Table 8 — Fan Performance 48TF004 — Vertical Discharge Units, Standard Motor LEGENDNOTES:1. Values include losses for filte
22Table 10 — Fan Performance 48TF004 — Vertical Discharge Units, High-Static Motor LEGEND*Motor drive range is 1075 to 1455
23Table 12 — Fan Performance 48TF005 — Vertical Discharge Units, Alternate Motor LEGEND*Motor drive range is 835 to 118
24Table 14 — Fan Performance 48TF006 — Vertical Discharge Units, Standard Motor LEGENDNOTES:1. Values include losses for filt
25Table 16 — Fan Performance 48TF006 — Vertical Discharge Units, High-Static Motor LEGEND*Motor drive range is 1300 to 1685 rpm
26Table 17 — Fan Performance 48TF007 — Vertical Discharge Units, Standard Motor LEGEND*Motor drive range is 1070 to 1460 rpm. A
27Table 18 — Fan Performance 48TF007 — Vertical Discharge Units, High-Static Motor LEGEND*Motor drive range is 1300 to 1685 r
28Table 19 — Fan Performance 48TF004 — Horizontal Discharge Units, Standard Motor LEGENDNOTES:1. Values include losses for filt
29Table 21 — Fan Performance 48TF004 — Horizontal Discharge Units, High-Static Motor LEGEND*Motor drive range is 1075 to 1455 rpm.
3Fig. 2 — Roof Curb DimensionsROOF CURBACCESSORYA UNIT SIZECRRFCURB001A001′-2″[356]48TF004-007CRRFCURB002A002′-0″[610]NOTES:1. Roof curb accessory is
30Table 22 — Fan Performance 48TF005 — Horizontal Discharge Units, Standard Motor LEGENDNOTES:1. Values include losses for filt
31Table 24 — Fan Performance 48TF005 — Horizontal Discharge Units, High-Static Motor LEGEND*Motor drive range is 1075 to 1455 rpm.
32Table 26 — Fan Performance 48TF006 — Horizontal Discharge Units, Alternate Motor LEGEND*Motor drive range is 900 to 1300 rpm. Al
33Table 27 — Fan Performance 48TF006 — Horizontal Discharge Units, High-Static Motor LEGEND*Motor drive range is 1300 to 1685 rpm.
34Table 28 — Fan Performance 48TF007 — Horizontal Discharge Units, Standard Motor LEGEND*Motor drive range is 1070 to 1460 rpm. Al
35Table 29 — Fan Performance 48TF007 — Horizontal Discharge Units, High-Static Motor LEGEND*Motor drive range is 1300 to 1685 rpm.
36START-UPUnit Preparation — Make sure that unit has been in-stalled in accordance with these installation instructions andapplicable codes.Return-Air
37If the limit switch trips at the start of the heating cycle dur-ing the evaporator ON delay, the time period of the ON delayfor the next cycle will
38HEATING, UNITS WITH ECONOMIZER — When thethermostat calls for heating, terminal W1 is energized. To pre-vent thermostat short-cycling, the unit
39LubricationCOMPRESSORS — Each compressor is charged with thecorrect amount of oil at the factory.FAN MOTOR BEARINGS — Fan motor bearings are of thep
4Unit may be installed directly on wood flooring or onClass A, B, or C roof-covering material when roof curb is used.Although unit is weatherproof, gu
404 TON UNIT CHARGING CHART3040506070809010020 30 40 50 60 70 80SUCTION LINE TEMPERATURE (DEG. F)207276345414483552621689-7 -1 4 10162127SUCTION LINE
415 TON UNIT CHARGING CHART3040506070809010020 30 40 50 60 70 80SUCTION LINE TEMPERATURE (DEG. F)207276345414483552621689-7 -1 4 10 16 21 27SUCTION LI
42Combustion-Air Blower — Clean periodically toassure proper airflow and heating efficiency. Inspect blowerwheel every fall and periodically during
43Fig. 51 — Burner Tray DetailsFig. 52 — Spark AdjustmentLOW HEAT48TFE004, 48TFD005-007 — 74,000 BTUH INPUT48TFM004, 48TFL005-006 — 60,000 BTUH INPUTM
44TROUBLESHOOTINGTable 32 — LED Error Code Service AnalysisLEGENDTable 33 — Heating Service AnalysisPROBLEM CAUSE REMEDYHardware failure.(LED OFF)Loss
45Table 34 — Cooling Service AnalysisPROBLEM CAUSE REMEDYCompressor and condenser fan will not start.Power failure. Call power company.Fuse blown or c
46Table 35 — Durablade Economizer TroubleshootingLEGENDPROBLEM CAUSE REMEDYDamper does not open.Indoor (evaporator) fan is off. 1. Check to ensure tha
47Table 36 — EconoMi$er TroubleshootingLEGENDOAT — Outdoor-Air TemperaturePROBLEM CAUSE REMEDYDamper does not open.Indoor (evaporator) fan is Off. Che
48Fig. 53 — Typical Wiring Diagram and Component Arrangement
49LEGEND FOR FIG. 53 — TYPICAL WIRING SCHEMATIC AND COMPONENT ARRANGEMENTIMPORTANT: Refer to unit wiring label for actual unit wiringinformation.AHA —
5Table 1 — Physical Data — 48TF004-007 LEGEND*Evaporator coil fin material/condenser coil fin material. Contact your localrepresentative f
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1
6Table 1 — Physical Data — 48TF004-007 (cont) LEGEND*Evaporator coil fin material/condenser coil fin material. Contact your localrepresen
7Fig. 6 — Base Unit DimensionsUNITSTD UNITWEIGHTDURABLADEECONOMIZER WEIGHTECONOMI$ERWEIGHT(A)CORNER WEIGHT(B)CORNER WEIGHT(C)CORNER WEIGHT(D)CORNER WE
8Step 7 — Make Electrical ConnectionsFIELD POWER SUPPLY — All units except 208/230-vunits are factory wired for the voltage shown on the nameplate.
9RACEWAY LOW VOLTAGECONNECTIONSINTEGRATED GAS UNITCONTROLLER (IGC)HOLE IN END PANEL (HIDDEN)LEGENDFig. 9 — Power Wiring ConnectionsC—ContactorCOMP —Co
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