Carrier 48XPN060130300, 48XPN060115300, 48XPN048090300, 48XPN042090300, 48XPN042060300 Installation Guide

...

Installation Instructions

NOTE: Read the entire instruction manual before starting the installation.

NOTE: Installer: Make sure the Owner's Manual and Service Instructions are left with the unit after installation,

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS ......................... 1

INTRODUCTION ................................... 2

RECEIVING AND INSTALLATION ................. 2-13

Check Equipment .................................. 2

Identify Unit .................................... 2

Inspect Shipment ................................. 2

Provide Unit Support ............................... 2

Roof Curb ...................................... 2

Slab Mount ..................................... 2

Ground Mount .................................. 2

Field Fabricate Ductwork ............................ 2

Provide Clearances ................................. 2

Rig and Place Unit ................................. 4

Connect Condensate Drain ........................... 6

Install Flue Hood ................................... 7

Install Gas Piping .................................. 7

Install Duct Connections ............................. 9

Configuring Units for Downflow (Vertical)

Discharge ...................................... 9

Install Electrical Connections ........................ 10

High-Voltage Connections ........................ 10

Special Procedures for 208-V Operation .............. 11

Control Voltage Connections ....................... 11

Easy Select TM . .................................. 11

Transformer Protection ........................... 14

PRE-START-UP ................................... 14

START-UP ..................................... 14-21

Check for Refrigerant Leaks ......................... 14

Unit Sequence of Operation ......................... 14

48XP Sequence of Operation ...................... 14

Start-Up Heating & Make Adjustments ................ 15

Check Heating Control ........................... 15

Check Gas Input ................................ 15

Adjust Gas Input ................................ 15

Check Burner Flame ............................. 16

Airflow and Temperature Rise ...................... 16

Heating Sequence of Operation ..................... 16

Limit Switches ................................. 16

Rollout Switch ................................. 17

Start-Up Cooling & Make Adjustments ................ 17

Checking Cooling Control Operation ................ 17

Checking & Adjusting Refrigerant Charge ............ 21

Indoor Airflow and Airflow Adjustments ............. 21

MAINTENANCE ................................ 22-25

Air Filter ........................................ 22

Evaporator Blower and Motor ........................ 22

Flue Gas Passageways .............................. 22

Turn to the Expertg

C99088

Fig. 1 - Unit 48XP

Combustion Air Blower ............................ 23

Limit Switch ..................................... 23

Burner Ignition ................................... 23

Main Burners .................................... 23

Condenser Coil, Evaporator Coil, & Condensate

Drain Pan ....................................... 23

Condenser Fan ................................... 24

Electrical Controls and Wiring ....................... 24

Refrigerant Circuit ................................. 24

Gas Input ........................................ 24

Evaporator Airflow ................................ 24

Puron® Items .................................... 25

TROUBLESHOOTING .............................. 26

START-UP CHECKLIST ............................ 26

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service maintenance, or use can cause explosion, fire, electrical shock, or other

conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your

distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories

when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing,

and work gloves. Have a fire extinguisher available. Read these

instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. consult local

building codes, the current editions of the National Fuel Gas Code

(NFGC)NFPA54/ANSIZ223A,andthe National Electrical Code

(NEC) NFPA 70. In Canada refer to the current editions of the National Standards of

Canada CAN/CSA-BI49.1 and .2 Natural Gas and Propane Installation codes, and Canadian Electrical Code CSA C22A

Recognize safety information. This is the safety-alert symbol Z_ When you see this symbol on the unit and in instructions or manu-

als, be alert to the potential for personal injury. Understand these signal words: DANGER, WARNING, and CAUTION. These

words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury

or death. WARNING signifies hazards which could result in per- sonal injury or death. CAUTION is used to identify unsafe practic-

es which may result in minor personal injury or product and prop- erty damage. NOTE is used to highlight suggestions which will

result in enhanced installation, reliability, or operation.

ELECTRICALSHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing or servicing system, always turn off and tag lockout main power to system. There may be more than one disconnect switch. Turn off accessory heater power switch if applicable.

FIRE, EXPLOSION, ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury, death or property damage.

A qualified installer or agency must use only factory-authorized kits or accessories when modifying this product.

INTRODUCTION

The 48XP unit (see Fig. 1) is a fully self-contained, combination Category I gas heating/electric cooling unit designed for outdoor

installation (See Fig. 2 and 3 for unit dimensions). All unit sizes have return and discharge openings for both horizontal and downflow configurations, and are factory shipped with all downflow duct openings covered. Units may be installed either on

a rooftop, a cement slab, or directly on the ground, if local codes permit (See Fig. 4 for roof curb dimensions).

Models with an N in the fifth position of the model number are dedicated Low NOx units designed for California installations.

These models meet the California maximum oxides of nitrogen (NOx) emissions requirements of 40 nanograms/joule or less as

shipped from the factory and must be installed in California Air Quality Management Districts or any other regions in North

America where a Low NOx rule exists.

RECEIVING AND INSTALLATION

Step 1 -- Check Equipment

IDENTIFY UNIT The unit model number and serial number are stamped on the unit

information plate. Check this information against shipping papers. INSPECT SHIPMENT

Inspect for shipping damage while unit is still on shipping pallet. If unit appears to be damaged or is torn loose from its anchorage,

have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manufacturer is not responsible for any damage incurred in transit.

Check all items against shipping list. Immediately notify the

nearest equipment distribution office if any item is missing. To prevent loss or damage, leave all parts in original packages until

installation.

Step 2 -- Provide Unit Support

For hurricane tie downs, contact distributor for details and PE (Professional Engineering) Certificate if required. ROOF CURB

Install accessory roof curb in accordance with instructions shipped with curb (See Fig. 4). Install insulation, cant strips, roofing, and

flashing. Ductwork must be attached to curb. IMPORTANT: The gasketing of the unit to the roof curb is

critical for a water tight seal. Install gasketing material supplied with the roof curb. Improperly applied gasketing also can result in

air leaks and poor unit performance. Curb should be level to within 1/4 in. (6 mm). This is necessary for

unit drain to function properly. Refer to accessory roof curb installation instructions for additional information as required.

SLAB MOUNT Place the unit on a solid, level concrete pad that is a minimum of 4 in. (102 mm) thick with 2 in. (51 mm) above grade. The slab should be flush on the compressor end of the unit (to allow

condensate drain installation) and should extend 2 in. (51 mm) on the three remaining sides of the unit. Do not secure the unit to the

slab except when required by local codes.

GROUND MOUNT The unit may be installed either on a slab or placed directly on the ground, if local codes permit. Place the unit on level ground

prepared with gravel for condensate discharge.

Step 3 -- Field Fabricate Ductwork

Secure all ducts to roof curb and building structure on vertical discharge units. Do not connect ductwork to unit. For horizontal

applications, unit is provided with flanges on the horizontal openings. All ductwork should be secured to the flanges. Insulate

and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable

codes. Ducts passing through an unconditioned space must be insulated

and covered with a vapor barrier. If a plenum return is used on a vertical unit, the return should be

ducted through the roof deck to comply with applicable fire codes. A minimum clearance is not required around ductwork. Cabinet

return-air static shall not exceed -.25 IN. W.C..

Step 4 -- Provide Clearances

The required minimum operating and service clearances are shown in Fig. 2 and 3. Adequate combustion, ventilation and condenser

air must be provided in accordance with section 9.3, Air for

Combustion and Ventilation, of the National Fuel Gas Code NFPA54/ANSI Z223.1 or applicable provisions of local building

code. In Canada, follow section 8 of Can/CSA-BI49.1 Installation Codes or applicable provisions of local building code. IMPORTANT: Do not restrict outdoor airflow. An air restriction

at either the outdoor-air inlet or the fan discharge may be detrimental to compressor life.

The condenser fan pulls air through the condenser coil and discharges it through the top grille. Be sure that the fan discharge

does not recirculate to the condenser coil. Do not locate the unit in either a corner or under an overhead obstruction. The minimum

clearance under a partial overhang (such as a normal house overhang) is 48-in. (1219 mm) above the unit top. The maximum horizontal extension of a partial overhang must not exceed 48-in.

(1219 mm) Do not place the unit where water, ice, or snow from an overhang

or roof will damage or flood the unit. Do not install the unit on carpeting or other combustible materials. The unit may be installed on wood flooring or on Class A, B, or C roof covering materials.

ELECTRICAL

CHARACTERISTICS

208 230 I 60

208 230 i 60, 2081230 3 60 208 230 i 60, 208/230 3 60

406 5

[16 DOE

OUTDOOR

UNIT

106 o [4 17]

_8XPO2_04O/OGO _SXPO3OO4O/OGO

_SXP036060/090

CORNER WEIGHT LBS/KG

"1 .... 2.... 3.... 4"

024 51123 68131 102146 119/54

030 52123 69/31 103/a7 120155

036 55124 74133 110150 129158

805

[317]

1533

[604]

@ t

INDOOR COIL

TOP VIEW

_UTDOOR COIL

UNIT WT UNIT HEIGHT

LBS KG "A"

340 154 940,313702]

344 156 368 167

REQ_RED CLEARANCES TO COMBUSTIBLE MATL.

TO_ OF UNIT ............................ 3556 [1400]

DUCT SIDE OF UNIT ......................................... 508 [200]

SIDE OPPOSETE DUCTS..................................... 3556 [1400]

BOTTOM OF UNIT .............................. O0 [OOO]

FLUE PANEL .............................................. 9i44 [3600]

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWERENTRY SIDE ........................ 10668 [4200]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE ....... 9140 [36 ODE

UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, DOWERENTRY SIDE ................... i0668 [4200]

REQ_RED CLEARANCE FOR OPERATION AND SERVICINO

EVAP COIL ACCESS SIDE ....................... 91_ O [3600]

POWER ENTRY SIDE ........................................ 91_0 [3600]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP ........................................... 12192 [_800]

SIDE OPPOSITE DUCTS..................................... 9140 [3600]

DUCT PANEL............................ 304 8 [1200]*

_MINIMUM DISTANCES:IF UNIT IS PLACED LESS THAN 3048 [1200] FROM WALL

SYSTEM,THEN SYSTEM PERFORMANCE MAYBE COMPROMISED

CENTER OF GRAVITY MM/IN

55881220] 38741i53] 4470[176] 50801200] 55561i4 O] 44701176]

Y Z

368 B[i_5] 40641160]

MILLIMETERS [IN]

DIMENSIONS IN [] ARE IN INCHES

_83 0

o> 2

798 5 [S 44]

FIELD ENTRY_

SERVICE PORTS i

19 O[O 15] NPT

X 220 DEER

[32 72]

LEFT SIDE VIEW

_3265

_724

[168]

[1285]

[285]

[4700]

FULL LOUVER

COMPRESSOR, 8LOWER, GAS PARTITIO

& ELECTRICAL ACCESS PANEL

12263 [A828]

FRONT VIEW

_I156

3130 [1232]

[455]

i238 [487]

222[088] DEA

456 R [1796]

a68

[184]

52 8 [208]

1222 [48_]

[020]

NPT

L GAS ENTRY

RIGHT SIDE VIEW

INING

m_:_RN

i L__

L1177

[463]

898

[353]

[983] [98B]

[21 67]

!496

REARVIEW

48XP500006

860

[339]

4066 [1601]

805

1[ OUTBOOR

[i1

INDOOR6OIL _. \N

[317]

733 [682]

[i1 t

UNIT CHARACTERISTICS

48XP042060/090 208 230 1 60, 208/230 3 60

48XP048090/!15/i30 208 230 1 60, 208/R30 3 60 48XPO6009B/!lS!130 208 230 1 60, 208/230 3 60

CORNER WEIGHT LBS/KG

"i .... 2 .... 3 .... 4"

042 62/28 82/37 124156 144/65

048 69/31 92/42 139/63 16R/73

060 76135 101146 152/69 178180

ELECTRICAL

UNIT WT UNIT HEIGHT CENTER OF GRAVITY MM/IN

LBS KG "A" X Z

412 181 1091714298: 4953[195] NB721180] 462 210 I1425[4498: 4953[195] 4476[176] 4572[180] 507 230 119331469B: 533412/0] 5BBB[ROO] 4420[176]

REO_PED CLEARANCES TO COMBUSTIBLE MATL.

TOP OF UNET ............................................. 3596 [1400]

DUCT SEDE OF UNET ......................................... 508 [200]

SIDE OPPOSITE DUCTS ..................................... 3556 [1400]

BOTTOM OF UNET............................................ OO [OOO]

FLUE PANEL ............................... 914 4 [36 O0]

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE ....................... 10668 [a20O]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIBE .......... 9140 [3600]

UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE .................... 10668 [4200]

REO_RED CLEARANCE FOR OPERATION AND ,SERVICING

EVAP COIL ACCESS SEDE .................................. 9140 [3600]

ROWER ENTRY SEDE ............................ 914 O [3600]

(EXCEPT FOR NEC REQUIREMENTS)

oNIT TOP ....................................... 12192 [4800]

SIDE OPPOSITE DUCTS ..................................... 9140 [3600]

DUCT PANEL.............................................. 3048 [1200]_

_MINIMUM DESTANCES:ZF UNIT IS PLACED LESS THAN 3048 [1200] FROM WALL

SYSTEM,THEN SYSTEM PERFORMANCE MAYBE COMPROMISED

DIMENSIONS IN [] ARE IN INCHES

MILLIMETERS [IN]

.=.

_°

TOP VIEW

10906

[4294]

FIELD ENTRY

SERVECE PORT

FULL LOUVER EL

11231

[4422]

LEFT SIDE VIEW

• _ FULL LOUVER

_X_ \

COMPRESSOR, BLOWER, GAS SECTION _

& ELECTRICAL ACCESS PANEL

[284]

FRONT VIEW

_1i63

[458]

28 61113] BIA N 0

POWER ENTRY\

506 [19 93]

466

[i 84]

526 [R07]

i422 [SGO]

SUPPLY

DUCT . . .

RIGHT SIDE VIEW

872 [343]

[016]

[i3 83] [1383]

REAR VIEW

48XP500009

J base\

J Screw _

/ (NOTE A) _'_v

*Gasketing .._

Flashing.field II1_1 tl

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii_i!i!ii!ii!ii!ii!ii!i!!_!!_!!_!!_!i_i!_iii_ii_ii_ii_ii_ii_ii_ii_ii_i!!!!!_!!_!!i!i!i!ii!ii!iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii!i!i!i!iiiiiiiiiiiiiiiiii_i_l_l......

Wood \

I Roofing mate_al ll_i!_ II supplied)

\ f'_'dsuPP'ied-- - tl_iill IL

II_s_n (f!eld I

_, /IS_!II II-_Uuctwork /

\ _li II ,i_,dsupp,ed/

Roof Curb for Small Cabinet

Note A:When unit mounting screw is used

retainer bracket must also be used.

Supply opening (BxC)

445/16"

Roof Curb for Large Cabinet

Note A:When unit mounting screw is used

retainer bracket must also be used.

R/A

S/A

-'---'--GaSkec,tua_Ound. / _

Insulated deck pan outer edge

CATALOG

UNIT SIZE IN. (MM) IN. (MM) IN. (MM)

48XP024-036 14 (356) 11 (279) 16-1/2 (419)

48XP042-060 8 (203) 16-3/16 (411) 17-3/8 (441)

NOTES:

1. Roof curb must be 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. Insulated panels: 1-in. (25 mm) thick fiberglass 1 lb (.45 kg) density. d. When unit mounting screw is used (see Note A), a retainer bracket must be used as well. This bracket must also be used when required by code for hurricane or seismic

conditions. This bracket is available through Micrometl.

NUMBER CPRFCURB006A00 CPRFCURB007A00

CPRFCURB008A00 CPRFCURB009A00

A B C

8 (203) 11 (279) 16-1/2 (419)

14 (356) 16-3/16 (411) 17-3/8 (441)

Fig. 4 - Roof Curb Dimensions

Gasket around

28-3/4 (730) 28-3/4 (730)

40-1/4 (1022) 40-1/4 (1022)

C00076

IN, (MM)

Unit

Rigging

Weight

NOTE: See dimensional drawing for corner weights.

024 030 036

Ib kg Ib kg Ib kg

351 159 355 161 379 172

SMALL CABINET

Unit

Rigging 427 194 477 216 522 237

Weight

Fig. 5 - 48XP Rigging Weights

DUCTS

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

BASEPAN SLOT (BELOW HANDHOLDS) BEFORE RIGGING

U NIT 48XP A B

024 22.0 14.50 368.3 030 22.0 14.50 368.3

036 22.0 15.30 388.6 042 20.0 21.25 539.8

048 21.5 16.3 414.0 060 23.5 16.3 414.3

in. in. mm

558.5

508.0

546.1

596.9

Fig. 6 - Suggested Rigging

LARGE CABINET

042 048 060

Ib kg Ib kg Ib kg

C99015

Step 5 -- Rig and Place Unit

Rigging and handling of this equipment can be hazardous for many reasons due to the installation location (roofs, elevated

structures, etc.). Only trained, qualified crane operators and ground support staff

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 precautions that might apply.

Use spreader bars or crate top when rigging the unit. The units must be rigged for lifting (See Fig. 6). Refer to Table 1 for

operating weight. Use extreme caution to prevent damage when moving the unit. Unit must remain in an upright position during

all rigging and moving operations. The unit must be level for proper condensate drainage; therefore, the ground-level pad or accessory roof curb must be level before setting the unit in place.

When a field-fabricated support is used, be sure that the support is level and properly supports the unit. Lifting point should be

directly over the center of gravity for the unit.

UNIT FALLING HAZARD Failure to follow this warning could result in personal

iniury or death. Never stand beneath rigged units or lift over people.

PERSONAL INJURY HAZARD Failure to follow this warning could result in personal

iniury or death. Never exceed 200 lb (91 kg) per bracket lifting force.

PERSONAL INJURY HAZARD Failure to follow this warning could result in personal

iniury/death. Accessory lifting kit is only to be used with Small Packaged

units which have a composite unit base with molded rigging holds.

Step 6 -- Connect Condensate Drain

NOTE: When installing condensate drain connection be sure to comply with local codes and restrictions.

Model 48XP disposes of condensate water through a 3/4 in. NPT fitting which exits through the compressor access panel (See Fig. 2

and 3 for location). Condensate water can be drained directly onto the roof in rooftop

installations (where permitted) or onto a gravel apron in groundlevel installations. Install a field-supplied condensate trap

at end of condensate connection to ensure proper drainage. Make

sure that the outlet of the trap is at least 1 in. (25 mm) lower than the drain-pan condensate connection to prevent the pan from

overflowing (See Fig. 7). Prime the trap with water. When using a gravel apron, make sure it slopes away from the unit.

If the installation requires draining the condensate water away from the unit, install a 2-in. (51 mm) trap at the condensate

connection to ensure proper drainage (See Fig. 7). Make sure that the outlet of the trap is at least 1 in. lower than the drain-pan condensate connection. This prevents the pan from overflowing.

Prime the trap with water. Connect a drain tube - using a minimum of 3/4-in. PVC or 3/4-in. copper pipe (all field-supplied) - at the

outlet end of the 2-in. (51 mm) trap. Do not undersize the tube. Pitch the drain tube downward at a slope of at least l-in. (25 mm)

for every 10 ft (3 m) of horizontal run. Be sure to check the drain tube for leaks.

1" (25 mm) MIN.

._L TRAP

OUTLET Z

_..'__-j__ 2"(51 mm)M IN.

A08001

Fig. 7 - Condensate Trap

Step 7 -- Install Flue Hood

The flue hood assembly is shipped in the return section of the indoor blower compartment (See Fig. 9). Remove the return duct

cover to locate the assembly. Dedicated low NOx models MUST be installed in California Air

Quality Management Districts where a Low NOx rule exists. These models meet the California maximum oxides of nitrogen (NOx)

emissions requirements of 40 nanograms/joule or less as shipped from the factory.

NOTE: Low NOx requirements apply only to natural gas installations.

PERSONAL INJURY AND UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury

or death and unit component damage. The venting system is designed to ensure proper venting. The

flue hood assembly must be installed as indicated in this section of the unit installation instructions.

absence of local building codes, adhere to the following pertinent

recommendations:

1. Avoid low spots in long runs of pipe. Grade all pipe 1/4 in. (6 mm) in every 15 ft (5 m) to prevent traps. Grade all

horizontal runs downward to risers. Use risers to connect to heating section and to meter.

2. Protect all segments of piping system against physical and thermal damage. Support all piping with appropriate straps, hangers, etc. Use a minimum of one hanger every 6 ft (2 m).

For pipe sizes larger than 1/2 in., follow recommendations of national codes.

3. Apply joint compound (pipe dope) sparingly and only to male threads of joint when making pipe connections. Use

only pipe dope that is resistant to action of liquefied petroleum gases as specified by local and/or national codes.

Never use Teflon tape.

Install the flue hood as follows:

1. This installation must conform with local building codes and with the National Fuel Gas Code (NFGC), NFPA

54/ANSI Z223.1 (in Canada, CAN/CSA B149.1, and B149.2) latest revision. Refer to Provincial and local plumbing or wastewater codes and other applicable local

codes.

2. Remove flue hood from shipping location (inside the return section of the blower compartment-See Fig. 9). Place vent cap assembly over flue panel. Orient screw holes in vent cap

with holes in the flue panel.

3. Secure flue hood to flue panel by inserting a single screw on the right side and the left side of the hood.

Step 8 -- Install Gas Piping

The gas supply pipe enters the unit through the access hole provided. The gas connection to the unit is made to the l/2-in. FPT gas inlet on the manual shutoff or gas valve.

Install a gas supply line that runs to the heating section. Refer to Table 2 and the NFGC for gas pipe sizing. Do not use cast-iron

pipe. It is recommended that a black iron pipe is used. Check the local utility for recommendations concerning existing lines. Size

gas supply piping for 0.5 IN. W.C. maximum pressure drop. Never use pipe smaller than the l/2-in. FPT gas inlet on the unit gas

valve. For natural gas applications, the gas pressure at unit gas connection

must not be less than 4.0 IN. W.C. or greater than 13 IN. W.C. while the unit is operating. For propane applications, the gas pressure must not be less than 7.0 IN. W.C. or greater than 13 IN.

W.C. at the unit connection. An l/8-in. NPT plugged tapping, accessible for test gage

connection, must be installed immediately upstream of the gas supply connection to the gas valve.

When installing the gas supply line, observe local codes pertaining to gas pipe installations. Refer to the NFPA 54/ANSI Z223.1, in Canada CAN/CSA-BI49.1 and B149.2 latest editions. In the

Table 1 - Physical Data - Unit 48XP

UNIT SIZE 48XP

NOMINAL CAPACITY (ton)

SHIPPING WEIGHT (Ib)

REFRIGERANT (R-410A)

REFRIGERANT METERING

EVAPORATOR BLOWER

Burner Orifice No. (Qty._Drill Size) Natural Gas

Burner Orifice No. (Qty._Drill Size) Propane Gas

HIGH-PRESSURE SWITCH (psig)

LOSS-OF-CHARGE / LOW-PRESSURE SWITCH

*Based on altitude of 0 to 2000 ft (0-610 m). 1-Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of

300 ft/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 IN. W.C..

(Liquid Line) (psig) Cut-out

RETURN-AIR FILTERS Throwawayt

(kg)

COMPRESSORS

Quantity

Quantity (Ib)

(kg)

DEVICE

CONDENSER COIL

Rows...Fins/in.

Face Area (sq ft)

CONDENSER FAN

Nominal Cfm

Diameter (in.)

(me)

Motor Hp (Rpm)

EVAPORATOR COIL

Rows...Fins/in.

Face Area (sq ft)

Nominal Airflow (Cfm)

Size (in.)

(me)

Motor (hp)

FURNACE SECTION*

Cut-out Reset (Auto)

Reset (auto)

(in.)

(mm)

024040 024060 030040 030080 036080

2 2 2-1/2 2-1/2 3

388 388 392 392 416

176 176 178 178 189

7.3 7.3 8.0 8.0 9.5 9.5 10.7 10.7

3.3 3.3 3.6 3.6 4.3 4.3 4.9. 4.9

2...21 2...21 2...21 2...21 2...21 2...21 2...21 2...21

11.95 11.95 11.95 11.95 13.7 13.7 15.4 15.4

2350 2350 2350 2350 2800 2800 2800 2800

22 22 22 22 22 22 22 22

559 559 559 559 559 559 559 559

1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825)

3...15 3...15 3...15 3...15 4...15 4...15 3...15 3...15

3.7 3.7 3.7 3.7 3.7 3.7 3.7 3.7

770 770 960 960 1150 1150 1400 1400

10x10 10x10 10x10 10x10 1lx10 1lx10 1lx10 1lx10

254x254 254x254 254x254 254x254 279x254 279x254 279x254 279x254

1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4

2...44 2...38 2...44 2...38 2...38 3...38 2...38 2...38

2...50 2...46 2...50 2...46 2...46 3...46 2...46 2...46

20x24x1 24x30x1

508x610x25 610x762x25

Scroll

TXV

650 +/-15 420 +/-25

20 +/-5

45 +/-10

036090 042060 042090

3 3-1/2 3-1/2 416 464 464 189 210 210

UNIT SIZE 48XP 048090 048115 048130 060090 060115 060130

NOMINAL CAPACITY (ton) 4 4 4 5 5 5

SHIPPING WEIGHT (Ib) 512 512 512 559 559 559

REFRIGERANT (R-410A) Quantity (Ib) 11.25 11.25 11.25 13.2 13.2 13.2

REFRIGERANT METERING DEVICE T;IV

CONDENSER COIL Rows...Fins/in. 2...21 2...21 2...21 2...21 2...21 2...21

EVAPORATOR BLOWER

Burner Orifice No. (Qty...Drill Size) Natural Gas 3...38 3...33 3...31 3...38 3...33 3...31

Burner Orifice No. (Qty._Drill Size) Propane Gas 3...46 3...42 3...41 3...46 3...42 3...41

HIGH-PRESSURE SWITCH (psig)

LOSS-OF-CHARGE / LOW-PRESSURE SWITCH (Liquid

RETURN-AIR FILTERS Throwaway'[" (in.) 24x30x1

300 if/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 IN. W.C..

(kg) 232 232 232 254 254 254

COMPRESSORS Scroll

Quantity 1

(kg) 5.1 5.1 5.1 6.0 6.0 6.0

Face Area (sq ft) 17.4 17.4 17.4 19.3 19.3 19.3

CONDENSER FAN

Nominal Cfm 3300 3300 3300 3300 3300 3300

Diameter (in.) 22 22 22 22 22 22

(mm) 559 559 559 559 559 559

Motor Hp (Rpm) 1/4 (1100) 1/4 (1100) 1/4 (1100) 1/4 (1100) 1/4 (1100) 1/4 (1100)

EVAPORATOR COIL

Rows...Fins/in. 4...15 4...15 4...15 4...17 4...17 4...17

Face Area (sq ft) 4.7 4.7 4.7 5.7 5.7 5.7

Nominal Airflow (Cfm) 1400 1400 1400 1710 1710 1710

Size (in.) 1lx10 1lx10 1lx10 1lx10 1lx10 1lx10

(mm) 279x254 279x254 279x254 279x254 279x254 279x254

Motor (hp) 3/4 (1075) 3/4 (1075) 3/4 (1075) 1.0 (1040) 1.0 (1040) 1.0 (1040)

FURNACE SECTION*

Cut-out 650 +/-15

Reset (Auto) 420 +/-25

Line) (psig) 20 +/-5

Cut-out Reset (auto) 45 +/-10

(mm) 610x762x25

Table 1 - Physical Data - Unit 48XP (Continued)

Table2- MaximumGas Flow Capacity*

NOMINAL INTERNAL LENGTH OF PIPE, FT (m)t

IRON PIPE, DIAMETER 10 20 30 40 50 80 70 80 90 100 125 150 175 200

SIZE (IN,) (IN,) (3) (8) (9) (12) (15) (18) (21) (24) (27) (30) (38) (48) (53) (81)

1/2 .822 175 120 97 82 73 88 81 57 53 50 44 40 -- -- 3/4 .824 380 250 200 170 151 138 125 118 110 103 93 84 77 72

1 1.049 880 485 375 320 285 280 240 220 205 195 175 180 145 135

11/4 1.380 1400 950 770 800 580 530 490 480 430 400 380 325 300 280 11/2 1.810 2100 1480 1180 990 900 810 750 890 850 820 550 500 480 430

* Capacity of pipe in cuft of gas per hr for gas pressure of 0.5 psig or less. Pressure drop of 0.5-IN. W.C. (based on a 0.60 specific gravity gas). Refer to Table 2 and the NFGC NFPA 54/ANSI Z223.1.

1-This length includes an ordinary number of fittings.

4. Install sediment trap in riser leading to heating section (See Fig. 8). This drip leg functions as a trap for dirt and

condensate.

TEE

NIPPLE

CAP

C99020

Fig. 8 - Sediment Trap

5. Install an accessible, external, manual main shutoff valve in gas supply pipe within 6 ft (2 m) of heating section.

6. Install ground-joint union close to heating section between unit manual shutoff and external manual main shut-off

valve.

7. Pressure-test all gas piping in accordance with local and national plumbing and gas codes before connecting piping to unit.

NOTE: Pressure test the gas supply system after the gas supply piping is connected to the gas valve. The supply piping must be disconnected from the gas valve during the testing of the piping

systems when test pressure is in excess of 0.5 psig. Pressure test the gas supply piping system at pressures equal to or less than 0.5 psig. The unit heating section must be isolated from the gas piping system by closing the external main manual shutoff valve and slightly opening the ground-joint union.

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal iniury, death and/or property damage.

-Connect gas pipe to unit using a backup wrench to avoid

damaging gas controls.

-Never purge agas line into a combustion chamber. Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to

check all connections.

-Use proper length of pipe to avoid stress on gas control manifold.

-If a flexible connector is required or allowed by authority having jurisdiction, black iron pipe shall be installed at furnace gas valve and extend a nfininmm of 2 in. (51 ram) outside furnace casing.

-If codes allow a flexible connector, always use a new connector, do not use a connector which has previously serviced another gas appliance.

8. Check for gas leaks at the field-installed and factoryinstalled gas lines after all piping connections have

been completed. Use soap-and-water solution (or method

specified by local codes and/or regulations).

Step 9 -- Install Duct Connections

The unit has duct flanges on the supply- and return-air openings on the side and bottom of the unit. For downshot applications, the

ductwork connects to the roof curb (See Fig. 2 and 3 for connection sizes and locations).

CONFIGURING UNITS FOR DOWNFLOW

_VERTICAL) DISCHARGE

ELECTRICALSHOCK HAZARD

Failure to follow this warning could result in personal iniury or death.

Before installing or servicing system, always turn off and tag lockout main power to system, There may be more than one

disconnect switch,

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