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SHIPPING RAILS

C06273

Fig. 2 -- Shipping Rail Removal

CAUTION: NOTICE TO RIGGERS: 

ALL PANELS MUST BE IN PLACE WHEN RIGGING. 

NOTICE TO RIGGERS: Rig by inserting hooks into unit base rails as shown.  Maintain a distance 
of 120 inches (3048 MM) from top of unit to eyehook.  Leave coil cover attached to unit while 
rigging to protect coil of unit from damage. 

C07241

Fig. 3 -- Rigging Details

48PM20

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28

Summary of Contents for COMFORTLink PURON 48PM20

Page 1: ...ilters All other operations should be performed by trained service personnel When working on air conditioning equipment observe precautions in the literature tags and labels attached to the unit and o...

Page 2: ...ng sides of unit with a minimum of 3 equally spaced 4 in x 4 in pads on each side Slab Mount Horizontal Units Only Provide a level concrete slab that extends a minimum of 6 in beyond unit cabinet Inst...

Page 3: ...3 C07327 Fig 1 Roof Curb Details 48PM20 28...

Page 4: ...ST BE IN PLACE WHEN RIGGING NOTICE TO RIGGERS Rig by inserting hooks into unit base rails as shown Maintain a distance of 120 inches 3048 MM from top of unit to eyehook Leave coil cover attached to un...

Page 5: ...5 50TG505861 Rev 2 0 C07328 Fig 4 Base Unit Dimensions 48PM20 28...

Page 6: ...N Manifold Pressure in wg Natural Gas Vertical Horizontal 3 00 2 95 3 00 2 95 3 00 2 95 Liquid Propane Vertical Horizontal 3 00 2 8 3 00 2 8 3 00 2 8 Thermostat Heat Anticipator Setting amps First Sta...

Page 7: ...43 43 43 34 34 Moveable pulley maximum full turns 6 6 6 6 6 6 Factory Speed setting RPM 1078 1078 1078 1078 906 906 MID HIGH RANGE Motor HP 7 5 7 5 7 5 7 5 7 5 7 5 Motor Nominal RPM 1750 1750 1750 17...

Page 8: ...s 6 6 6 6 6 6 Factory Speed setting RPM 1062 991 1062 991 906 906 MID HIGH RANGE Motor HP 5 5 5 5 7 5 7 5 Motor Nominal RPM 1750 1750 1750 1750 1750 1750 Maximum Continuous BHP 5 37 5 75 5 75 5 37 5 7...

Page 9: ...sed with a night set back thermostat To operate at lower return air temperatures a field supplied outdoor air temperature control must be used to initiate both stages of heat when the temperature is b...

Page 10: ...h the unit Attach the cover of the observation hole on the intake hood and then replace the heat panel onto the unit to complete the installation NOTE When properly installed the flue hood will line u...

Page 11: ...ration using natural gas at an elevation from sea level to 2000 ft This unit uses orifice type LH32RFnnn where nnn indicates the orifice size based on drill size diameter in thousands of an inch High...

Page 12: ...phasing is critical to the operation of the scroll compressors An incorrect phasing will result in compressor shutdown on thermal overload and possible damage to compressor Should this occur power pha...

Page 13: ...anticipator settings as follows VOLTAGE STAGE 1 W1 ON STAGE 1 AND 2 W1 AND W2 ON All 0 15 0 30 Settings may be changed slightly to provide a greater degree of comfort for a particular installation Hu...

Page 14: ...ROOFTOP UNIT TB2 THERMIDISTAT C06295 Fig 17 Field Control Thermidistat Wiring C07354 Fig 18 Humidi MiZert Low Voltage Terminal Strip Humidity Sensor Humidistat Wiring 48PM C Humidi MiZer RTU C07346 F...

Page 15: ...07 106 2 1 5 9 115 114 150 150 115 115 150 150 121 119 5 16 7 15 2 109 108 125 125 109 109 125 125 114 112 2 1 5 9 121 120 150 150 121 121 150 150 128 126 7 5 24 2 22 117 115 150 150 117 117 150 150 1...

Page 16: ...12 2 1 5 9 120 119 150 150 120 120 150 150 126 125 5 16 7 15 2 114 113 150 150 114 114 150 150 120 118 2 1 5 9 126 125 150 150 126 126 150 150 133 132 7 5 24 2 22 122 120 150 150 122 122 150 150 128 1...

Page 17: ...ge is greater than 2 Use the following formula to determine the percent age of voltage imbalance Voltage Imbalance 100 x max voltage deviation from average voltage average voltage Example Supply volta...

Page 18: ...ge of both hood sides where hood side connects to the unit back panel See Fig 21 6 Apply seal strip provided to top flange of both hood sides where hood sides connect to the hood top panels See Fig 21...

Page 19: ...ssembly rests against the inside wall of unit 3 Secure each damper assembly to unit with 6 screws across top 3 screws provided and bottom 3 screws from item 1 of damper 4 With screws saved from item 1...

Page 20: ...ket and Hood Positioning Copyright 2007 Carrier Corp D 7310 W Morris St D Indianapolis IN 46231 Printed in U S A Edition Date 11 07 Manufacturer reserves the right to change at any time specifications...

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