ICP PAF060K000A, PAF048K000A, PAF042K000A, PAF036K000A, PAF030K000A Owner’s Manual

...

Installation Instructions

SINGLE PACKAGE AIR CONDITIONERS

PAF & APFM Series - 2 to 5 TON

Printed in U.S.A.

519 01 1102 O0 10-25-01

Safety Labeling and Signal Words

Danger,Warning and Caution

The signal words DANGER, WARNING and CAUTION are

used to identify levels of hazard seriousness. The signal

word DANGER is only used on product labels to signify an

immediate hazard. The signal words WARNING and CAUTION will be used on product labels and throughout

this manual and other manuals that may apply to the

product.

Signal Words

DANGER - Immediate hazards which WILL result in

severe personal injury or death. WARNING - Hazards or unsafe practices which COULD

result in severe personal injury or death. CAUTION - Hazards or unsafe practices which COULD

result in minor personal injury or product or property

damage. Signal Words in Manuals

The signal word WARNING is used throughout this manual

in the following manner:

Danger Label

White lettering on a black background except the word

DANGER which is white with a red background,

Warning Label White lettering on a black background except the word

WARNING which is black with an orange background,

Caution Label White lettering on a black background except the word

CAUTION which is black with a yellow background,

The signal word CAUTION is used throughout this manual

in the following manner:

CAUTION

Product Labeling

Signal words are used in combination with colors and/or pictures on product labels. Following are examples of

product labels with explanations of the colors used.

L_J 51901 110200

2 TO 5 TON

See

Detail

41/2 .

BASE PAN - CHASSIS

42-3/4"*

BASE RAIL

12-1/4 --

SUPPLY

1-9/16

2-3/16

UNITSIZE A B C

2 TO 3-1/2 Ton 29-1/2 47-1/2 47-1/2 4 TO 5 Ton 37-1/2 47-1/2 47-1/2

** Measured from inside to inside on base rails.

12-1/4

46-1/8"*

Condensate Drain

RETURN

2- 3/16

3-3/4

E F G H I J

9-1/2 12 14 12 14 4-1/2 6-1/2 19 19 12 12 4-1/2

51901 110200 138

SAFE INSTALLATION

Installation or repairs made by unqualified persons can result in hazards to you and others. Installation MUST conform with

local building codes or, in the absence of local codes, with the ANSI Z223.1 and the National Electrical Code NFPA70-1990 or

in Canada the National Standard CAN/CGA B149-1 and CSA C.22.1 - Canadian Electrical Code Part 1.

The information contained in this manual is intended for use by a qualified service technician familiar with safety proce-

dures and equipped with the proper tools and test instru- ments.

Failure to carefully read and follow all instructions in this

manual can result in furnace malfunction, property damage, personal injury and/or death.

• Seal supply and return air ducts.

• Check to see that filters are installed correctly and are the proper type an size.

NOTE: It is the personal responsibility and obligation of the

customer to contact a qualified installer to ensure that the

installation is adequate and conforms to governing codes

and ordinances.

Minimum Clearances to Combustible Construction

Condenser Inlet ................................... 30"

Blower Service (Side) .............................. 30"

Control Service Side ............................... 30"

Clearance between 3 Ft. Overhang

and Top of Unit ........................ 30"

Combustible Base

(Wood or Class A, B or C

roof covering material) .................... 0"

FIGURE i Minimum Clearances(BChassisandshown)ACcessPanels

I Blower Compartment Panel

Small Chassis - 2"

Large Chassis

LOCATING THE UNIT

ACCESS PANELS

See FIGURE 1 for a general view of unit and location of

access panels.

CLEARANCES

The location MUST allow for minimum clearances and should not be adjacent to a patio or other area where the

unit's operating sound level might be objectionable. (see FIGURE 1). In addition, local codes MUST be observed.

NOTE: Units with available filter racks, need a 26" minimum

clearance at side of unit for removal of filters. See chart

below if unit is going to be placed near combustible

construction or materials. While minimum clearances are acceptable for safety

reasons, they may not allow adequate air circulation around

the unit for proper operation in the cooling mode. Whenever

possible, it is desirable to allow additional clearance, especially around the condenser inlet and discharge

openings.

Do NOT install the unit in a location that will permit

discharged air from the condenser to recirculate to the condenser inlet.

CAUTION

INSTALLATION

NOTICE

Unit will NOT operate properly unless it is installed lev-

el front to rear and side to side. The slope MUST NOT be greater than 1/8"per foot (10mm per meter). For side to

side leveling, the drain side MUST always be lower.

Ground Level Installation

Ground level platform requirements:

- The unit MUST be situated to provide safe access for servicing.

- Platform may be made of either concrete or pressure treated wood and MUST be level and strong enough to support unit weight.

- Position platform separate from building foundation.

- Install in well-drained area, with top surface of platform above grade level.

- Platform must be high enough to allow for proper con- densate trap installation and drainage. See FIGURE 2

and associated text for more information about conden- sate drainage.

Do NOT operate unit in a corrosive atmosphere con-

taining chlorine, fluorine, or any other corrosive chemicals.

_41 51901 110200

Rooftop Installation

Rooftop platform requirements:

- The unit MUST be situated to provide safe access for servicing.

- The existing roof structure MUST be adequate to sup- port the weight of the unit or the roof MUST be

reinforced. Check the weight of the unit in relation to the roof struc-

ture and local building codes or ordinances and reinforce roof structure if necessary. See the last page of this manual for unit weights.

- Support for the unit MUST be level and strong enough to carry unit weight. The support may consist of a plat- form or a combination of platform and roof beams or

curb.

- See Hoisting section for hoisting instructions.

HOISTING NOTE: All access panels MUST be secured in place before

hoisting.

The unit should be hoisted with two lifting slings. Attach the slings to rigging shackles that have been hooked through

holes in the base rail.

Two spreader bars MUST be placed on top of the unit to

protect the unit from damage from the pressure exerted by

the slings. Make sure that all equipment is adequate to

handle the weight of the unit and that the slings will not allow

the unit to shift.

Refer to on the back cover of this manual for illustrated rigging instructions and weight chart.

DOWNFLOW CONVERSION

outlet from trap MUST be at least 1" (25.4mm) below top of outlet from unit. Install the trap as near to the unit as

possible for proper drainage,

A3/4" (19.1mm) drain line MUST be installed if required by

local codes or if location of unit requires it. Run the drain line

to an open drain or other suitable disposal point.

2 / Condensateora n,nformot oo*

3/4" (19,1mm)

Female PVC

Fitting

(25.4mm)

80-31-32

2" (50.8mm)

3/4" (19.1mm) Drain Line

* Condensate trap MUST be installed.

ElectricalWiring

NOTE: In downflow applications with roof curbs or jack

stands, the center rail under the unit must be removed. The center rail is attached to the base rail with screws.

These units are adaptable to downflow use. To convert to downflow use, follow these steps:

1. Remove the blockoff plates found in the return air compartment and the supply air compartment.

NOTE: Blockoff plate in the supply air compartment only

contains one screw. If reinstalling plate, back part of plate

MUST fit into mating dimples on flange. To reinstall, slant plate into dimples, then put plate into position and fasten

with screw.

2. Install the removed plates on the horizontal return and supply air openings.

3. Install roof curb on the building. Be sure to follow all directions included with curb and all applicable building codes in your installation.

Condensate Drain

The condensate drain outlet is a 3/4" (19.1 mm) female PVC connection located at the bottom on the left hand side (see

FIGURE 2).

The circulating blower creates a negative pressure on the condensate drain line that can prevent the condensate from

draining properly. To combat this negative pressure, a field supplied condensate trap that will allow a standing column

of water of at least 2" (50.8mm) MUST be installed. Top of

Electrical shock hazard.

Disconnect power at fuse box or service panel

before making any electrical connections.

Unit MUST be grounded to electrical service pan-

el.

Failure to follow this warning can result in prop-

erty damage, personal injury, and/or death.

NOTE: All electrical work MUST conform with the require- ments of local codes and ordinances and in the United

States with National Electrical Code ANSI!NFPA 70-1990

(or current edition) and in Canada with CSA C22.1 - Cana- dian Electrical Code Part 1 (or current edition). Provide line voltage power supply from a separate fused circuit with a

disconnect switch (when required) located within sight of the unit. Supply voltage, amperage, wire, fuse and discon-

nect switch sizes MUST conform with specifications in the Parts List and on the unit rating plate.

Wiring MUST be protected from possible mechanical dam- age and MUST NOT interfere with removal of access

panels, filters, etc.

51901 110200 151

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