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50TCQA
SinglePackageRooftop
HeatPump
withPuronr(R---410A)Refrigerant
Sizes 04 --- 07
InstallationInstructions
NOTE: Readthe entire instructionmanual before starting
SAFETYCONSIDERATIONS
the installation
Improper installation, adjustment, alteration, service,
TABLEOFCONTENTS
maintenance, or use can cause explosion, fire, electrical
shock or other conditions which may cause personal
SAFETY CONSIDERATIONS .................... 1
injury or property damage. Consult a qualified installer,
service agenc
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! ! WARNING WARNING PERSONAL INJURY AND ENVIRONMENTAL ELECTRICALSHOCKHAZARD HAZARD Failure to follow this warning could cause personal Failure to follow this warning could cause personal injuryordeath. injuryordeath. Before performing service or maintenance operations Relieve pressure and recover all refrigerant before on unit, always turn off main power switch to unit and system repairorfinal unit disposal. install lockout tag. Unit may have more than one Wear safety glasses and gloves when han
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Vertical Connections / Economizer Horizontal Connections / Economizer C09001 Fig. 1 -- Unit Dimensional Drawing – 04 — 07 Size Units 3 50TCQA
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C09002 Fig.1 -- UnitDimensionalDrawing–04—07SizeUnit(cont.) INSTALLATION 1 JobsiteSurvey 18” (457) Complete the following checks before installation. 42" (1067) 1. Consult local building codes and the NEC (National Electrical Code) ANSI/NFPA 70 for special installa- tion requirements. 2. Determine unit location (from project plans) or select 18" (457) 42" (1067) unit location. 3. Check for possible overhead obstructions which may interfere with unit lifting or rigging. 1 Required bottom condensa
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Roofmount— Step3—Inspectunit Inspect unit for transportation damage. File any claim Check building codes for weight distribution with transportation agency. requirements. Unit operating weight is shown in Table 1. Confirm before installation of unit that voltage, amperage Step2—PlanforSequenceofUnitInstallation and circuit protection requirements listed on unit data plate agree with power supply provided. The support methodusedforthis unit will dictate different sequences for the steps of unit i
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ROOFCURB UNIT SIZE ACCESSORY 1’ - 2” CRRFCURB001A02 [356] 50TCQA04-07 2’ - 0” CRRFCURB002A02 [610] C08548 Fig. 3 -- Roof CurbDetails 6 50TCQA
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should be ducted through the roof deck to comply with applicable fire codes. For units with accessory electric heaters: Horizontal applications require a minimum clearance to combustible surfaces of 1--in (25 mm) from duct for first 12--in (305 mm) away from unit. Vertical applications do not require a minimum clearance. MAXIMUM ALLOWABLE DIFFERENCE IN. (MM) Minimum clearance is not required around ductwork. A-B B-C A-C Step6—RigandPlaceUnit 0.5” (13) 1.0” (25) 1.0” (25) Keep unit upright and do
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PositioningonCurb— Step8—InstallOutsideAirHood EconomizerHoodRemovalandSetup-- Factory Position unit on roof curb so that the following clearances 1 Option are maintained: / in. (6.4 mm) clearance between the 4 roof curb and the base rail inside the front andrear, 0.0in. 1. The hood is shipped in knock--down form and clearance betweenthe roofcurbandthe base rail inside on located in the return air compartment. It is attached the duct end of the unit. This will result in the distance to the econo
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TwoPositionDamperHoodRemovalandSetup-- 3. Locate the (2) screws holding the metal tray to the FactoryOption basepan and remove. Locate and cut the (2) plastic tie--wraps securing the assembly tothe damper. (See 1. The hood is shipped in knock--down form and Fig. 9.) Be careful to not damage any wiring or cut assembled to a metal support tray using plastic tie--wraps securing any wiring. stretch wrap. Located in the return air 4. Carefully lift the hood assembly (with metal tray) compartment, the
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EconomizerHoodandTwo--PositionHood— filter rack (hood divider). Push the filter into position past the open filter clips. Close the filter clips to lock NOTE: If the power exhaust accessory is to be installed the filter into place. See Fig. 12. on the unit, the hood shipped with the unit will not be used and must be discarded. Save the aluminum filter for use in the power exhaust hood assembly. 1. The indoorcoil accesspanel will be used asthe topof the hood. Remove the screws along the sides and
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unit disconnect. On a unit without a unit--mounted disconnect, connect the source leads to compressor MINIMUM PITCH contactor C and indoor fan contactor IFC pressure lugs 1” (25mm) PER BASE RAIL 10’ (3m) OF LINE with unit field power leads. 2˝ (51) MIN All units except 208/230-v units are factory wired for the OPEN VENT voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the control transformer must be rewired by moving the black wire TO ROOF SEE NO
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UnitswithFactory--InstalledDisconnect— ConvenienceOutlets— The factory--installed option disconnect switch is located ! WARNING in a weatherproof enclosure located under the main control box. The manual switch handle is accessible ELECTRICALOPERATIONHAZARD through an opening in the access panel. Discard the factory test leads (see Fig. 16). Failure to follow this warning could result in personal injuryordeath. Units Without Disconnect Option Units with convenience outlet circuits may use IFC (3
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Mount the weatherproof cover to the backing plate as the face of the receptacle to trip and open the receptacle. shown in Fig. 18. Remove two slot fillers in the bottom of Check for proper grounding wires and power line phasing the cover to permit service tool cords to exit the cover. if the GFCI receptacle does not trip as required. Press the Check for full closing and latching. RESET button to clear the tripped condition. COVER – WHILE-IN-USE RECEPTACLE WEATHERPROOF NOT INCLUDED BASE PLATE FO
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control the reversing valve operation. If using an electronic thermostat, configure it for “non--heat pump” operation. Locate the thermostat accessory on a solid wall in the conditioned space to sense average temperature in LOW VOLTAGE accordance with the thermostat installation instructions. CONDUIT CONNECTOR If the thermostat contains a logic circuit requiring 24--v power, use a thermostat cable or equivalent single leadsof different colors with minimum of seven leads. If the HIGH VOLTAGE COND
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RACEWAY DISCONNECT MOUNTING LOCATION INDOOR UNIT BLOCK-OFF OUTDOOR ACCESS PANEL ACCESS PANEL PANEL C08133 Fig. 23 -- Typical AccessPanel Location HOLE IN END PANEL (HIDDEN) C08027 Not all available heater modules may be used in every Fig. 22 -- FieldControl Wiring Raceway unit. Use only those heater modules that are UL listed for use in a specific size unit. Refer to the label on the unit ElectricHeaters cabinet for the list of approved heaters. Unit heaters are marked with Heater Model Numbers.
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11 13 21 23 ALLIED PA CORP. MODEL NO. OD ERI AL NO. 22.2 ISTED AIR 1 NDITIONING UIP ACCESS 23 346N. 3 P / N 2- 5610-4 REV CONTROL BOX BUSHING SINGLE POINT BOX MOUNTING SCREWS DRIP BOOT BRACKET MOUNTING TRACK SCREWS POWER WIRES FOAM BUSHING FLANGE HEATER RELAYS HEATER MOUNTING SCREWS C08136 C08135 Fig. 26 -- Typical Single Point Installation Fig. 25 -- Typical Module Installation All fuses on 50TCQ units are 60--A. (Note that all heaters Single Point Boxes and Supplementary Fuses — When are
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PremierLinkt(Factory--Option)— C08199 Fig. 28 -- PremierLinkController The PremierLink controller (see Fig. 28) is compatible The SAT is factory--wired. The SAT probe is wire--tied to with Carrier Comfort Networkr (CCN) devices. This the supply--air opening (on the horizontal opening end) in control is designed to allow users the access and ability to its shipping position. Remove the sensor for installation. change factory--defined settings, thus expanding the Re--position the sensor in the fla
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C09014 Fig. 30 -- PremierLinkWiring Schematic 18 50TCQA
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Outdoor Air Temperature (OAT) Sensor — The OAT is Connect T--55 -- See Fig. 31 for typical T--55 internal factory--mounted in the EconoMi$er2 (FIOP or connections. Connect the T--55 SEN terminals to TB1 accessory). It is a nominal 10k ohm thermistor attached to terminals 1 and 3 (see Fig. 32). an eyelet mounting ring. TB1 PL EconoMi$er2 — The PremierLink control is used with EconoMi$er2 (option or accessory) for outdoor air SEN 1 J6-7 management. The damper position is controlled directly SEN J6
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CTB SPACE THERMOSTAT THERMOSTAT R R TB1 PL 2 GJ4-12 Y1 4 J4-10 Y2 J4-8 6 W1 8 J4-6 W2 J4-4 10 CTB C C THERMOSTAT C08119 Fig. 35 -- Space Thermostat Connections Table3–PremierLinkSensorUsage OUTDOOR AIR RETURN AIR OUTDOOR AIR RETURN AIR APPLICATION TEMPERATURE TEMPERATURE ENTHALPY SENSOR ENTHALPY SENSOR SENSOR SENSOR DifferentialDry Bulb Temperature with Required --- Included --- PremierLink 33ZCT55SPT --- --- CRTEMPSN001A00 (PremierLinkrequires orequivalent 4---20 mA Actuat
