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9

ACCESS PANELS MUST BE IN PLACE WHEN RIGGING.

PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION.

50CY502286  2.0

CAUTION - NOTICE TO RIGGERS
PRUDENCE - AVIS AUX MANIPULATEUR

Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition

SEAL STRIP MUST BE IN
PLACE BEFORE PLACING
UNIT ON ROOF CURB

DUCTS

DETAIL A

VOIR DÉTAIL A

MINIMUM HEIGHT: 36" (914.4 mm)
HAUTEUR MINIMUM

UNIT HEIGHT
HAUTEUR D'UNITÉ

SEE DETAIL A
VOIR DÉTAIL A  

BANDE SCELLANT DOIT ÊTRE 
EN PLACE AVANT DE PLACER 
L'UNITÉ SUR LA BASE DE TOIT

A09079

SMALL CABINET

LARGE CABINET

Unit *

24

30

Unit *

36

42

48

60

lb

kg

lb

kg

lb

kg

lb

kg

lb

kg

lb

kg

Rigging Weight

468

212

498

226

Rigging Weight

540

245

551

250

575

261

618

280

NOTE: See dimensional drawing for corner weights.

Fig. 7 -- Suggested Rigging

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal

injury or death.
For vertical supply and return units, tools or parts could

drop into ductwork, therefore, install a 90 degree turn in the

return ductwork between the unit and the conditioned space.

If a 90 degree elbow cannot be installed, then a grille of

sufficient strength and density should be installed to prevent

objects from falling into the conditioned space. Units with

electric heaters require 90 degree elbow in supply duct.

!

WARNING

IMPORTANT

: Use flexible connectors between ductwork and

unit to prevent transmission of vibration. Use suitable gaskets to
ensure weather tight and airtight seal. When electric heat is
installed, use fireproof canvas (or similar heat resistant material)
connector between ductwork and unit discharge connection. If
flexible duct is used, insert a sheet metal sleeve inside duct. Heat
resistant duct connector (or sheet metal sleeve) must extend 24--in.
(610 mm) from electric heater element.

3. Size ductwork for max possible air flow (See Table 1).
4. Seal, insulate, and weatherproof all external ductwork. Seal,

insulate and cover with a vapor barrier all ductwork passing

through conditioned spaces. Follow latest Sheet Metal and
Air Conditioning

Contractors

National Association

(SMACNA) and Air Conditioning Contractors Association
(ACCA) minimum installation standards for residential

heating and air conditioning systems.

5. Secure all ducts to building structure. Flash, weatherproof,

and vibration--isolate duct openings in wall or roof

according to good construction practices.

6. Read unit rating plate for any required clearances around

ductwork.

CONVERTING HORIZONTAL DISCHARGE UNITS TO
DOWNFLOW (VERTICAL) DISCHARGE UNITS

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.
Before installing or servicing system, always turn off main

power to system and tag. There may be more than one

disconnect switch. Turn off accessory heater power switch if

applicable.

!

WARNING

1. Open all electrical disconnects and install lockout tag before

starting any service work.

2. Remove horizontal (metal) duct covers to access vertical

(downflow) discharge duct knockouts in unit basepan. (See
Fig. 8)

3. Starting in a corner as shown in Fig. 9, score the panel in

both directions from the corner. Tap the panel out from the

scored corner using a small hammer. Be careful and not
damage any other part of the unit.

48X

T

--

A

Содержание INFINITIR 15 SEER 48XT-A

Страница 1: ...Ground Screw 12 Routing Control Power Wires 12 Accessory Installation 13 Special Procedures for 208 v Operation 13 PRE START UP 15 START UP 16 28 Unit Start Up and Troubleshooting 16 Sequence of Oper...

Страница 2: ...ated for Puron R 410A WARNING CUT HAZARD Failure to follow this caution may result in personal injury When removing access panels or performing maintenance functions inside your unit be aware of sharp...

Страница 3: ...taff should handle and install this equipment When working with this equipment observe precautions in the literature on tags stickers and labels attached to the equipment and any other safety precauti...

Страница 4: ...set up for unit being installed 2 Seal strip must be applied as required to unit being installed 3 Roof curb is made of 16 gauge steel 4 Attach ductwork to curb flanges of duct rest on curb 5 Insulate...

Страница 5: ...5 A09150 Fig 5 48XT A24 30 Unit Dimensions 48XT A...

Страница 6: ...6 A09151 Fig 6 48XT A36 60 Unit Dimensions 48XT A...

Страница 7: ...2800 22 559 1 8 825 2800 22 559 1 8 825 2800 22 559 1 8 825 2800 22 559 1 8 825 INDOOR COIL Rows Fins in Face Area sq ft 3 17 3 7 3 17 3 7 3 17 3 7 3 17 4 7 3 17 4 7 3 17 4 7 3 17 4 7 INDOOR FAN Nomin...

Страница 8: ...ill Size Natural Gas 3 38 3 33 3 31 3 38 3 33 3 31 HIGH PRESSURE SWITCH psig Cut out Reset Auto 670 10 470 25 HIGH PRESSURE SWITCH 2 psig Compressor Solenoid Cut out Reset Auto 565 15 455 15 LOSS OF C...

Страница 9: ...anvas or similar heat resistant material connector between ductwork and unit discharge connection If flexible duct is used insert a sheet metal sleeve inside duct Heat resistant duct connector or shee...

Страница 10: ...tion requires draining the condensate water away from the unit install a field supplied 2 in 51 mm trap at the condensate connection to ensure proper drainage Condensate trap is available as an access...

Страница 11: ...th shall not exceed 36 in 915 mm 3 When lever handle type manual equipment shutoff valves are used they shall be T handle valves 4 The use of copper tubing for gas piping is NOT approved by the state...

Страница 12: ...ircuit breaker size and minimum circuit amps ampacity for wire sizing The field supplied disconnect may be mounted on the unit over the high voltage inlet hole See Fig 5 and 6 Operation of unit on imp...

Страница 13: ...appear at UI Re wire thermistor correctly for normal operation B Humidifier Connections The furnace control board terminal marked HUM is provided for low voltage 24 vac control of a humidifier No hum...

Страница 14: ...AD SINGLE PHASE CONNECTIONS TO DISCONNECT PER NEC LEGEND NEC National Electrical Code Field Wiring Splice Connections NOTE Use copper wire only L1 L2 A06299 Fig 13 Line Power Connections FURNACE BOARD...

Страница 15: ...NG CAUTION and INFORMATION labels attached to or shipped with unit 3 Make the following inspections a Inspect for shipping and handling damages such as broken lines loose parts disconnected wires etc...

Страница 16: ...ion Fault on amber STATUS LED No further troubleshooting information will be available at UI until communications are re established If either COMM LED does not light within proper time period and sta...

Страница 17: ...0 VAC or 24 VAC Blower runs for 90 seconds if unit is powered up during a call for heat R W W1 closed or R W W1 opens during blower on delay period STATUS CODE 13 LIMIT CIRCUIT LOCKOUT Lockout occurs...

Страница 18: ...18 A09080 Fig 17 Wiring Schematic 48XT A Single Phase Gas Inputs 040 060 090 kBtu hr 48XT A...

Страница 19: ...19 A09081 Fig 18 Wiring Schematic 48XT A Single Phase Gas Inputs 115 130 kBtu hr 48XT A...

Страница 20: ...h fine steel wool proper flame sense microamps 5 microamps D C min 4 0 6 0 nominal manual valve shut off low inlet gas pressure control ground continuity gas valve defective or turned off flame sensor...

Страница 21: ...satisfied NOTE Heat stages are not shortened due to a 5 degree or higher demand All stages are utilized for the full allotted time described above If the UI determines it is making sufficient progress...

Страница 22: ...e Ther mal Cutout 72 Compressor voltage sensed then disappears while cooling or heat ing demand exists Possible causes are internal compressor over load trip or start relay not releasing if installed...

Страница 23: ...O are selected by the Infinity Control User Interface the dip switches are not used AUTO defrost adjusts the defrost interval time based on the last defrost time as follows S When defrost time 3 minut...

Страница 24: ...low of gas to the burners and de energizing the HUM terminal The inducer motor will remain on for a 4 second post purge period The indoor blower and air cleaner terminal EAC 1 will remain energized fo...

Страница 25: ...s meter to complete one revolution d Divide number of seconds in step c into 3600 number of seconds in 1 hour e Multiply result of step d by the number of cubic feet shown for one revolution of test d...

Страница 26: ...ssive restrictions causing static pressures in excess of 5 in wc d Make sure model plug is installed 8 Final Check a Turn off gas to unit b Remove manometer from pressure tap c Replace pipe plug on ma...

Страница 27: ...e component test section or Status Code Label for explanation of status codes NOTE To repeat component test turn setup switch SW1 6 to OFF and then back ON Check for Refrigerant Leaks Locate and repai...

Страница 28: ...se unavailable If communications cannot be established with the UI the Infinity furnace board will enable the standard thermostat input terminals to allow simple thermostatic control of the 48XT A uni...

Страница 29: ...0 047 42 0 014 0 017 0 020 0 024 0 027 0 031 0 035 0 039 0 043 48 0 027 0 032 0 036 0 041 0 046 0 052 0 057 0 063 0 068 60 0 029 0 032 0 036 0 040 0 045 0 049 0 053 Table 8 Filter Pressure Drop Table...

Страница 30: ...maintenance to the accessories as recommended in the accessory instructions Air Filter IMPORTANT Never operate the unit without a suitable air filter in the return air duct system Always replace the...

Страница 31: ...the motor shaft when tightening 7 Replace grille Infinity Top A06035 UNIT SIZE A DIM IN MM 24 1 26 30 1 26 36 1 26 42 1 26 48 11 32 9 60 9 16 14 Fig 25 Outdoor Fan Blade Clearance Electrical Controls...

Страница 32: ...efrigerant charging REFRIGERANT UNIT OPERATION SAFETY AND ENVIRONMENTAL HAZARD Failure to follow this warning could result in personal injury or equipment damage This system uses Puron R 410A refriger...

Страница 33: ...contactor and fan relay are de energized Compressor and fan operation are not allowed until voltage is a minimum of 190v The control will flash the appropriate fault code See Table 4 230V LINE POWER D...

Страница 34: ...e thermistor comparison is not performed during low ambient cooling operation FAILED THERMISTOR DEFAULT OPERATION Factory defaults have been provided in the event of failure of outdoor air thermistor...

Страница 35: ...0 psig low side retard S Use hoses with minimum 700 psig service pressure rating S Leak detectors should be designed to detect HFC refrigerant S Puron as with other HFCs is only compatible with POE oi...

Страница 36: ...load or increase unit size UI temperature set too low too high Reset UI setting Low refrigerant charge Locate leak repair and recharge Air in system Recover refrigerant evacuate system and re charge O...

Страница 37: ...t 2 Check gas valve Inducer pressure switch not closing 1 Check pressure switch wires connections and tubing Repair or replace if necessary Inadequate heating Dirty air filter Clean or replace filter...

Страница 38: ...I START UP ELECTRICAL SUPPLY VOLTAGE COMPRESSOR AMPS INDOOR EVAPORATOR FAN AMPS TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE DB RETURN AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB WB GAS HEAT SUPPLY...

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