ICP PAF324000K00A1, PAF330000K00A1, PAF336000K00A1, PAF342000K00A1, PAF348000K00A1 Installation Guide

...

Installation Instructions

PAF3 Series

PACKAGE AIR CONDITIONERS

TABLEOFCONTENTS

UNITDIMENSIONS ......................................... 2

SAFEINSTALLATIONREQUIREMENTS ......................... 3

LOCATINGTHE UNIT ....................................... 3

CLEARANCES ............................................ 3

INSTALLATION............................................ 3

GROUNDLEVELINSTALLATION .............................. 3

RooftopINSTALLATION..................................... 3

HOISTING................................................ 4

DOWNFLOWCONVERSION .................................. 4

CONDENSATEDRAIN....................................... 4

_ CLIS_IEDUS

ELECTRICALWIRING................................... 5

DUCTWORK.......................................... 6

FILTERS ............................................. 6

AIRFLOWADJUSTMENT ................................ 7

START-UPPROCEDURES ............................... 8

SequenceofOPERATION................................ 8

MAINTENANCE ....................................... 8

RIGGING ........................................... 11

WIRINGDIAGRAMS ................................ 12 - 13

Printed in U.S.A.

Key: PAF3

519 01 1201 O0 12-5-05

2 TO 5 TON

See

Detail

41/2"

BASE PAN - CHASSIS

42-3/4"*

BASE RAIL

46-1 !8"*

--" 12-1/4 i Condensate Drain

SUPPLY 12-1/4

RETURN

1-9/16

2-3/16

3-3/4

1-3/4

2-3/16

UNITSIZE A B C D

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

** Measured from inside to inside on base rails.

E F G H I J

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

2. SAFE INSTALLATION REQUIREMENTS

FIRE AND ELECTRICAL SHOCK HAZARD

Failure to carefully read and follow all instructions in this

manual could result in furnace malfunction, personal

injury, death and/or property damage.

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 National Electrical Code NFPA70-2005 or in Canada and CSA C.22.1 - Canadian

Electrical Code Part 1.

The information containedin this manual isintendedfor use by a qualifiedservice technician familiar with safety procedures and equipped withthe propertools and test

instruments.

• Seal supply and return air ducts.

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

NOTE: Itis 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.

3. LOCATING THE UNIT

ACCESS PANELS

See NO TAG 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. The

combustion air inlet openings MUST not be obstructed (see

NO TAG). In addition, local codes MUST be observed. NOTE: Units with available filter racks (3-1/2 to 5ton), need

a 26" minimum clearance at side of unit for removal of filters. See Minimum Clearances 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 inthe 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.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in shorten life of unit components.

Do NOT operate unit in a corrosive atmosphere containing chlorine, fluorine, or any other corrosive

chemicals.

Minimum Clearances to Combustible Construction

Duct Side .................. 2" (6" on large chassis models)

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

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

Control Service Side

(Front Combustion Air Inlet) .............. 30"

Clearance between 3 Ft. Overhang

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

Combustible Base

(Wood or Class A, B or C

roof covering material) ..................... O"

FiGuRE i 1 Minimum Clearances

_ 36"_

3o" BlowerMotor

/ AeeesPanel

ASupPiYct I /(Side)

_ 30" _ _

InternalFilter AccessPanel(FilterFieldSupplied)

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 condensate trap installation and drainage. See

FIGURE 2 and associated text for more information

about condensate drainage.

Rooftop Installation Rooftop platform requirements:

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

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

Control Box

[]

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

structure and local building codes or ordinances and reinforce roof structure if necessary.

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

curb.

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 ofthe unit and that the slings will not allow

the unit to shift.

Refer to Figure 8 for illustrated rigging instructions and

weight chart.

DOWNFLOW CONVERSION

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 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,

A 3/4" (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.

FIGURE 2 1 Condensate Drain Information*

3/4" (19.1mm)

Female PVC

Fitting _

(25.4mm)

(

2" (50.Smm)

3/4" (19,1mm) Drain Line

* Condensate trap MUST be installed.

80-31-32

141

+ 9 hidden pages