Carrier WEATHER MASTER P4 Installation Instructions Manual
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Carrier WEATHER MASTER P4 Installation Instructions Manual

Carrier WEATHER MASTER P4 Installation Instructions Manual

Single package gas heating and electric cooling units with direct spark ignition and comfortlink controls
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CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . .1,2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-68
Step 1 - Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Place Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 3 - Roof Mount Unit. . . . . . . . . . . . . . . . . . . . . . . . 2
Step 4 - Slab Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 5 - Install Curb Gasketing. . . . . . . . . . . . . . . . . . 2
Step 7 - Rig Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 8 - Connect Condensate Drain. . . . . . . . . . . . 16
• UNIT SIZES 055-100
• INSTALL SMALL HOODS
• INSTALL LARGE HOODS
Step 11 - Route Field Wiring . . . . . . . . . . . . . . . . . . . 35
• UNIT SIZES 070-100
• VARIABLE FRQUENCY DRIVE
Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Step 15 - Remove Optional Return-Fan
Shipping Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Step 16 - Connect Gas Piping. . . . . . . . . . . . . . . . . . 61
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Step 21 - Install Unit Accessories . . . . . . . . . . . . . . 68
CONTROLS INSTALLATION . . . . . . . . . . . . . . . . . . 68-76
Constant Volume Units . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Variable Air Volume (VAV) Units . . . . . . . . . . . . . . . . . 68
Optional UPC Open Installation . . . . . . . . . . . . . . . . . 74
Smoke Control Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . 74

GENERAL

This installation instruction contains basic unit installation
information, including installation of thermostats and remote
temperature sensors.
Catalog No. 04-53480079-01
Single Package Gas Heating and Electric Cooling Units
with Direct Spark Ignition and COMFORTLINK™ Controls

Installation Instructions

Page
®
V
(CCN) Interface. . . . . . . 73
®
Printed in U.S.A.
For additional information and service instructions, refer to
the Controls and Troubleshooting literature.
A factory-installed optional integral economizer and high-
capacity power exhaust is available on size 075-100 units.
A factory-installed optional return fan is available on size
075-100 units.
The staged gas control (SGC) option adds the capability to
control the rooftop unit's gas heating system to a specified
supply-air temperature set point for purposes of tempering a
cool mixed-air condition.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-
tions of cleaning coils and filters and replacing filters. All
other operations should be performed by trained service per-
sonnel. When working on air-conditioning equipment, observe
precautions in the literature, tags and labels attached to the unit,
and other safety precautions that may apply.
Follow all safety codes, including ANSI (American Nation-
al Standards Institute) Z223.1. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
fire extinguisher available for all brazing operations.
Before performing service or maintenance operations on
unit, turn off main power switch to unit. Electrical shock
could cause personal injury.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance. Do not touch any electri-
cal switch; do not use any phone in your building. Immedi-
ately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions. If you cannot reach
your gas supplier, call the fire department.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Improper installation, adjustment, alteration, service, or
maintenance can cause injury or property damage. Refer to
this manual. For assistance or additional information, con-
sult a qualified installer, service agency, or the gas supplier.
Form 48P-4SI
Pg 1
WEATHERMASTER
48P2,P3,P4,P5030-100
WARNING
WARNING
11-10
Replaces: 48P-3SI
®

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Summary of Contents for Carrier WEATHER MASTER P4

  • Page 1: Table Of Contents

    Optional and Accessory Control Wiring ..68 (CCN) Interface..73 Carrier Comfort Network ® Optional UPC Open Installation ....74 Smoke Control Modes.

  • Page 2: Installation

    CAUTION Disconnect gas piping from units when leak testing at pres- sures greater than 0.5 psig. Pressures greater than 0.5 psig will cause gas valve damage resulting in a hazardous condition. If gas valve is subjected to pressure greater than 0.5 psig, it must be replaced.
  • Page 3 Table 1A — Physical Data 48P2,P3,P4,P5030-050 BASE UNIT NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Base Unit Low Heat High Heat With Economizer Low Heat High Heat COMPRESSORS Quantity...Type Oil Charge (oz) per Compressor Number of Refrigerant Circuits REFRIGERANT Operating Charge (lb), Ckt 1/Ckt 2 Standard Evaporator Coil Standard Evaporator with Humidi-MiZer®...
  • Page 4 Table 1A — Physical Data 48P2,P3,P4,P5030-050 (cont) BASE UNIT NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Base Unit Low Heat High Heat With Economizer Low Heat High Heat COMPRESSORS Quantity...Type Oil Charge (oz) per Compressor Number of Refrigerant Circuits REFRIGERANT Operating Charge (lb), Ckt 1/Ckt 2 Standard Evaporator Coil Standard Evaporator with Humidi-MiZer®...
  • Page 5 Table 1B — Physical Data 48P2,P3,P4,P5055-070 BASE UNIT NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Base Unit Low Heat High Heat With Economizer Low Heat High Heat COMPRESSORS Quantity...Type Oil Charge (oz) per Compressor Number of Refrigerant Circuits REFRIGERANT Operating Charge (lb), Ckt 1/Ckt 2 Standard Evaporator Coil Standard Evaporator with Humidi-MiZer®...
  • Page 6 Table 1C — Physical Data 48P2,P3,P4,P5075-100 BASE UNIT NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Base Unit Low Heat High Heat With Economizer Low Heat High Heat COMPRESSORS Quantity...Type Oil Charge (oz) per Compressor Number of Refrigerant Circuits REFRIGERANT Operating Charge (lb), Ckt 1/Ckt 2 Standard Evaporator Coil Standard Evaporator with Humidi-MiZer®...
  • Page 7 Table 1C — Physical Data 48P2,P3,P4,P5075-100 (cont) BASE UNIT OPTIONAL POWER EXHAUST* Quantity...Motor Hp Motor Frame Size Efficiency at Full Load (%) High Efficiency Premium Efficiency Fan Pulley Pitch Diameter (in.) Motor Pulley Pitch Diameter (in.) Shaft Diameter at Pulley (in.) Resulting Fan Rpm Maximum Allowable Rpm FILTERS...
  • Page 8 Table 5 — Operating Weights of Options and Accessories (lb) OPTION OR ACCESSORY Condenser Section Roof Curb Economizer Power Exhaust Barometric Relief Double Wall Construction Roof Curb Standard Length Extended Length With High-Capacity Power Exhaust High-Efficiency Filters Bag Filters and Cartridge Filters Hail Guard Inlet Guide Vanes Variable Frequency Drive...
  • Page 9 MOTOR TOTAL MOTOR SHAFT SPEED QTY...HP DIAMETER (in.) Sizes 030-050 2...3 656/500 6† 2...3 656/500 1VP44L 10** 2...5 785/621 1VP50L 15** 2...7.5 882/717 20** 2...10 1000/854 Sizes 055-100 2...5 2...7.5 2...10 *High-efficiency motor option. †Premium-efficiency motor option. **Applies to both motor options. Table 8 —...
  • Page 15 "X" CONDENSER END SUPPORT 4 REF. 9 3/4" "X"- NO GASKET DETAIL A-A Fig. 6 — Gasket Location on Roof Curb (Size 070-100 Units) Fig. 7 — Gasket Location — Condenser Section Roof Curb (Size 070-100 Units)

  • Page 16: Step 8 - Connect Condensate Drain

    Fig. 8 — Gasket Location on Roof Curb (48P075-100 Units with Optional High-Capacity Power Exhaust) Step 8 — Connect Condensate Drain — are a total of five drain connections required on each unit: one primary drain (on right-hand side of the unit) and four second- ary drains (two on each side of unit).
  • Page 17 CAUTION - NOTICE TO RIGGERS: ALL PANELS MUST BE IN PLACE WHEN RIGGING. NOTE: Rig with four cables and spread with two 95 inch (2413 MM) spreader bars. MODEL POSITION UNITS 1,2,3 2,3,4,5 B,D,H 48 P2, P3, P4, P5 Vertical Supply/ Return Horizontal Supply/ Return Low Gas Heat 2,3,4,5...
  • Page 18 CAUTION - NOTICE TO RIGGERS: ALL PANELS MUST BE IN PLACE WHEN RIGGING. NOTE: Rig with four cables and spread with two 95 inch (2413 MM) spreader bars. MODEL POSITION UNITS 50P 2,3,4,5 -,B,C 50 P2, P3, P4, P5 Vert Supply/Return w/ RE Fan Horz Supply Vert Return w/ RE Fan 48P 2,3,4,5 B,D,H...
  • Page 19 48P2,P3,P4,P5 UNITS Vertical Supply/Return Horizontal Supply/Return Low Heat No Extended Chassis Vertical Supply/Return Horizontal Supply/Return High Heat No Extended Chassis Vertical Supply/Return Horizontal Supply/Return Low Heat with Extended Chassis Vertical Supply/Return Horizontal Supply/Return High Heat with Extended Chassis 48P2,P3,P4,P5 UNITS WITH OPTIONAL HIGH-CAPACITY POWER EXHAUST Vertical Supply/Return Horizontal Supply/Return...
  • Page 20 48P2,P3,P4,P5 UNITS WITH OPTIONAL RETURN FAN Vertical Supply/Return Horizontal Supply/Return Low Heat Vertical Supply/Return Horizontal Supply/Return High Heat Vertical Supply/Return Horizontal Supply/Return Low Heat with Extended Chassis Vertical Supply/Return Horizontal Supply/Return High Heat with Extended Chassis NOTE: The weight distribution and center of gravity information include the impact of an economizer, the largest indoor fan motor, and a VFD (variable frequency drive).
  • Page 21 a48-8613...
  • Page 22 a48-8614...
  • Page 23 a48-8615...
  • Page 24 a48-8616...
  • Page 25 a48-8617...
  • Page 26 a48-8618...
  • Page 27 a48-8619...
  • Page 28 a48-8620...
  • Page 29 a48-8621...
  • Page 30 a48-8622...
  • Page 31 Capacity Power Exhaust Fig. 22 — Units with Optional Extended Chassis — Location of Coil Tracks Fig. 23 — Primary Drain Connection a48-8458 2” MIN. (51 mm) A = 4-in. (102 mm) min — Sizes 030-070 7-in. (178 mm) min — Sizes 075-100 Fig.

  • Page 32: Step 9 - Install Outdoor Hoods (Units Without Optional High-Capacity Power Exhaust)

    16-GAGE METAL SEAL PLATE (FIELD SUPPLIED FIELD INSTALLED) Fig. 27 — Secondary Drain Seal Plate Location (Slab Mount) Step 9 — Install Outdoor Hoods (Units without Optional High-Capacity Power Exhaust) UNIT SIZES 030-050 25% Outdoor-Air Hoods (Units without Economizer Option) (Fig. 28) 1.

  • Page 33: Step 10 - Install Economizer Hoods (Units With Optional High-Capacity Power Exhaust)

    OUTDOOR AIR HOODS (FIXED) Fig. 32 — 25% Outdoor-Air Hood Location SIDE HOODS (ROTATE OPEN) END HOODS (FIXED) Fig. 33 — Economizer Outdoor-Air Hood Installation (Sizes 055-100) SIDE HOODS (ROTATE OPEN) END HOODS (FIXED) POWER EXHAUST (FIXED) Fig. 34 — Economizer with Power Exhaust Outdoor-Air Hood Installation (Sizes 055-100) SIDE HOODS (ROTATE OPEN)
  • Page 34 EXHAUST LEGEND PE VFD — Power Exhaust Variable Frequency Drive Fig. 36 — Economizer Hood Location — Units with High-Capacity Power Exhaust SEE DETAIL Z ITEM 6 DETAIL Z SCALE 3:4 ITEM 1 ITEM 8 ITEM 9 PE VFD LARGE ECONOMIZER HOOD LOCATION POWER EXHAUST ACCESS DOOR...

  • Page 35: Power Wiring

    Step 11 — Route Field Wiring UNIT SIZES 030-060 — Field wiring can be brought into the unit through the basepan and roof curb or through the corner post in the side of the unit next to the control box. -in.
  • Page 36 a48-8463 Use care when drilling into corner post to avoid damage to con- denser coil. Fig. 38 — Disconnect Location — Size 030 and 035 Units a48-8464 Use care when drilling into corner post to avoid damage to con- denser coil. Fig.
  • Page 37 DISCONNECT PER NEC EQUIP GND LEGEND EQUIP — Equipment — Ground — National Electrical Code — Terminal Block Fig. 41 — Field Power Wiring Connections FACTORY-INSTALLED DISCONNECT HANDLE LOCATION FACTORY-INSTALLED DISCONNECT (HIDDEN) Fig. 42 — Factory-Installed Disconnect Location (End of Unit Shown) DISCONNECT PER NEC a48-8466...
  • Page 38 Table 10 — Electrical Data, 48P2,P3,P4,P5030 Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 208/230 51.3 23.1 CONDENSER EVAPORATOR No. B1 FAN MOTOR FAN MOTOR (ea) (ea) 24.2 / 22.0 30.8 / 28.0 46.2 / 42.0 51.3 (ea) 59.4 / 54.0...
  • Page 39 Table 10 — Electrical Data, 48P2,P3,P4,P5030 Units (cont) VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 40 Table 11 — Electrical Data, 48P2,P3,P4,P5035 Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 208/230 55.8 26.9 CONDENSER EVAPORATOR FAN No. B1 FAN MOTOR MOTOR (ea) (ea) 24.2 / 22.0 30.8 / 28.0 46.2 / 42.0 55.8 (ea) 59.4 / 54.0...
  • Page 41 Table 11 — Electrical Data, 48P2,P3,P4,P5035 Units (cont) VOLTAGE COMPRESSOR VOLTAGE RANGE No. A1 3 PH, 60 Hz (ea) (ea) 23.7 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 42 Table 12 — Electrical Data, 48P2,P3,P4,P5040 Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 208/230 55.8 26.9 CONDENSER EVAPORATOR No. B1 FAN MOTOR FAN MOTOR (ea) (ea) 24.2 / 22.0 30.8 / 28.0 46.2 / 42.0 30.1 (ea) 59.4 / 54.0...
  • Page 43 Table 12 — Electrical Data, 48P2,P3,P4,P5040 Units (cont) VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 23.7 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 44 Table 13 — Electrical Data, 48P2,P3,P4,P5050 Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 208/230 33.3 17.9 CONDENSER EVAPORATOR No. B1 FAN MOTOR FAN MOTOR (ea) (ea) 24.2 / 22.0 30.8 / 28.0 46.2 / 42.0 48.1 (ea) 59.4 / 54.0...
  • Page 45 Table 13 — Electrical Data, 48P2,P3,P4,P5050 Units (cont) VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 12.8 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 46 Table 14 — Electrical Data, 48P2,P3,P4,P5055 Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 208/230 48.1 18.6 14.7 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 47 Table 15 — Electrical Data, 48P2,P3,P4,P5060 Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 208/230 51.3 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 48 Table 16 — Electrical Data, 48P2,P3,P4,P5070 Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 208/230 51.3 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 49 Table 17 — Electrical Data — 48P2,P3,P4,P5075 Standard Units COMPRESSOR VOLTAGE No. A1,A2 RANGE VOLTAGE 3 PH, 60 Hz (ea) (ea) 26.9 23.7 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 50 Table 18 — Electrical Data — 48P2,P3,P4,P5075 Units with Optional High-Capacity Power Exhaust COMPRESSOR VOLTAGE No. A1,A2 RANGE VOLTAGE 3 PH, 60 Hz (ea) (ea) 26.9 23.7 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower —...
  • Page 51 Table 19 — Electrical Data — 48P2,P3,P4,P5075 Units with Optional Return Fan VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 26.9 23.7 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower —...
  • Page 52 Table 20 — Electrical Data — 48P2,P3,P4,P5090 Standard Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 53 Table 21 — Electrical Data — 48P2,P3,P4,P5090 Units with Optional High-Capacity Power Exhaust VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower —...
  • Page 54 Table 22 — Electrical Data — 48P2,P3,P4,P5090 Units with Optional Return Fan VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower —...
  • Page 55 Table 23 — Electrical Data — 48P2,P3,P4,P5100 Standard Units VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower — Locked Rotor Amps —...
  • Page 56 Table 24 — Electrical Data — 48P2,P3,P4,P5100 Units with Optional High-Capacity Power Exhaust VOLTAGE COMPRESSOR No. A1 RANGE VOLTAGE 3 PH, 60 Hz (ea) (ea) 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower —...
  • Page 57 Table 25 — Electrical Data — 48P2,P3,P4,P5100 Units with Optional Return Fan VOLTAGE COMPRESSOR RANGE No. A1 VOLTAGE 3 PH, 60 Hz (ea) (ea) 23.1 19.9 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Nominal Horsepower —...

  • Page 58: Modulating Power Exhaust

    Step 13 — Connect Air Pressure Tubing — fore options such as the variable frequency drive (VFD) and/or modulating power exhaust can operate properly, the pneumatic tubing for pressure sensing must be installed. Use fire-retardant plenum tubing (field-supplied). All control devices use tubing.
  • Page 59 Fig. 45 — Auxiliary Control Box Location (Sizes 055-100) OACFM TRANSDUCER LEGEND — Building Pressure Transducer — Duct Pressure Transducer — Filter Switch OACFM — Outdoor Air Cfm Sensor Transducer Fig. 46 — Auxiliary Control Box Details (Sizes 030-050) — Building Pressure Transducer —...

  • Page 60: Step 14 - Remove Supply-Fan Shipping

    OACFM TRANSDUCER LEGEND BP — Building Pressure OACFM — Outdoor Air Cfm Transducer Sensor Transducer DP — Duct Pressure PPSS — Plenum Pressure Transducer Safety Switch FS — Filter Switch RFCFM — Return Fan Cfm Sensor Transducer Fig. 48 — Auxiliary Control Box Details (Size 075-100 Units with Optional Return Fan) Step 14 —...

  • Page 61: Shipping Brackets

    Fig. 51 — Shipping Brackets (Sizes 075-100) NOTE: All dimensions are in inches. Fig. 52 — Optional Return Fan Shipping Brackets After removing all shipping brackets, level the fan using the adjustment screws. On all 4 corners the dimension from cross rail to fan sled should be as shown in Fig.

  • Page 62: Step 18 - Install Flue/Inlet Hoods And Baffles

    *NPT plug is field supplied. NOTE: Follow all local codes. Fig. 53 — Gas Piping Details Step 18 — Install Flue/Inlet Hoods and The flue/inlet hoods and baffles are shipped in a Baffles — package taped to the basepan in the fan section. The flue (out- let) hoods are pre-assembled.
  • Page 63 FLUE OUTLET HOOD FLUE HOOD AND FLUE DEFLECTOR HOOD 6-IN. INLET HOOD 30-IN. INLET HOOD Fig. 56 — Flue/Inlet Hood Locations, Sizes 055-100, Low Heat, Horizontal Supply Units FLUE OUTLET HOOD FLUE HOOD AND FLUE DEFLECTOR HOOD 6-IN. INLET HOOD Fig.
  • Page 64 Table 26 — Flue Hood, Inlet Hood, and Baffle Usage HOOD OR PARTS LIST FIG. NO. BAFFLE TYPE Top (6-in.) Side (Left) 6-in. Inlet Side (Right) Hood Screen Speed Clips Screws Top (14-in.) Side (Left) Side (Right) 14-in. Inlet Screen 65,66 Hood Cover...
  • Page 65 FLUE DEFLECTOR HOOD FLUE DEFLECTOR BAFFLE (BOTH HOODS) Fig. 63 — Flue Deflector Baffle (Curve-Type) OBSERVE OFFSET MOUNTING HOLE LOCATIONS WHEN INSTALLING FLUE DEFLECTOR HOODS. Fig. 64 — Mounting Deflector Hoods ACCESS PANEL OPENING MAKE SCREW HOLES ALIGN a48-8588 SIDE (TYP BOTH SIDES) Fig.

  • Page 66: Step 20 - Install Optional Motormaster

    SCREEN (WITH SPEED CLIPS) INLET HOOD SIDE Fig. 67 — Inlet Hood Assembly (30-in.) THERMISTOR CONNECTION POINT SAT1 J8 – 1,2 (SGC) SAT2 J8 – 3,4 (SGC) SAT3 J8 – 5,6 (SGC) LIMTTEMP J8 – 15,16 (SGC) SGC — Staged Gas Controller Step 20 —...
  • Page 67 WIND BAFFLE BAFFLE INSTALLATION LOCATION (SIZES 050 AND 060 SHOWN) a48-8560 Fig. 70 — Wind Baffle Details DIMENSION “A” UNIT SIZE QUANTITY 030,035 Not Used — 040-060 78.125 ± 0.125 070-100 Not Used — NOTE: 48/50P030, 035, and 070-100 units do not require baffles.

  • Page 68: Step 21 - Install Unit Accessories

    4 or 9 sensors as shown in Fig. 73. NOTE: Only Carrier sensors may be used for standard T-55 space averaging. Sensors must be used in multiples of 1, 4, and 9 only, with total sensors wiring not to exceed 1000 ft.
  • Page 69 • smoke control — purge (Fig. 83) • smoke control — evacuation (Fig. 83) • smoke control — pressurization (Fig. 83) • CCN connections (Fig. 84) FIELD SUPPLIED THERMOSTAT a48-8474 TB201 Fig. 71 — Field Control Thermostat Wiring TB201 TB202 NOTE: Use T55 sensor only.
  • Page 70 RELAY 5 a48-8481 a48-8478 Fig. 75 — Outdoor Air Enthalpy Switch Wiring a48-8479 FILTER STATUS a48-8480 Fig. 74 — Heat Interlock Relay Wiring FIELD INSTALLED (FIELD SUPPLIED) JUMPER WHEN ENTHALPY SWITCH NOT USED TB201 Fig. 76 — CO Space Sensor Wiring Fig.
  • Page 71 a48-8482 Fig. 79 — Space and Return Air Humidity Sensor Wiring a48-8483 Fig. 78 — Fan Status Switch Wiring Fig. 80 — Return Air CO Sensor Wiring...
  • Page 72 a48-8483 FIRE SHUTDOWN a48-8485 a48-8486 Fig. 83 — Purge, Evacuation, and Pressurization Wiring Fig. 81 — Return Air Smoke Detector Wiring TB201 Fig. 82 — Fire Shutdown Wiring TB 202 TB201 TB201 RCB J4...

  • Page 73: Carrier Comfort Network

    TB201 ® Carrier Comfort Network (CCN) Interface — The 48P Series units can be connected to the CCN system if desired. The communication bus wiring is supplied and installed in the field. It consists of shielded, 3-conductor cable with shield wire.

  • Page 74: Optional Upc Open Installation

    c. Secure the black (–) wire to CCN screw terminal – on the COMM board. d. Secure shield wire to CCN screw terminal SHIELD on the COMM board. IMPORTANT: A shorted CCN bus cable will prevent some routines from running and may prevent unit from starting.
  • Page 75 Table 30 — Open System Wiring Specifications and Recommended Vendors WIRING SPECIFICATIONS Wire Type 22 AWG, single twisted shielded pair, low capacitance, CL2P, TC foam FEP, plenum rated. See MS/TP Installation Guide for specifications. MS/TP Network (RS-485) 24 AWG, single twisted shielded pair, low capacitance, CL2P, TC foam FEP, plenum rated.

  • Page 76: Controls Installation

    See Table 31 and Fig. 81 and 82 for more information. Copyright 2010 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

This manual is also suitable for:

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