Installation Manual

4
519 01 1102 00
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.
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 26² 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
Do NOT operate unit in a corrosive atmosphere con-
taining chlorine, fluorine, or any other corrosive
chemicals.
Minimum Clearances to Combustible Construction
Condenser Inlet 30²...................................
Blower Service (Side) 30²..............................
Control Service Side 30²...............................
Clearance between 3 Ft. Overhang
and Top of Unit 30²........................
Combustible Base
(Wood or Class A, B or C
roof covering material) 0²....................
FIGURE 1
Minimum Clearances and Access Panels
(B Chassis Shown)
Blower Compartment Panel
80--00--01
30’’
30’’
Small Chassis -- 2’’
Large Chassis -- 6’’
30’’
30’’
36’’
2’’
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
² 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.