4
18-EB41D1-1A-EN
Introduction, Unit Inspection and Specification
Introduction
Read this manual carefully before attempting to install,
operate, or perform maintenance on this unit.
Installation and maintenance should be performed by
qualified service technicians only. Do NOT use this
furnace for temporary heating of buildings under
construction.
As shipped from the factory, this unit is for use with
natural gas only. It is listed by Underwriters
Laboratory. An LP Gas conversion kit is available.
Extreme mounting kits for slab and curbs are also
available.
Packaged units are designed for outdoor mounting
with a vertical condenser discharge. They can be
located either at ground level or on a roof in
accordance with local codes or National Fuel Gas Code
(ANSI-Z223.1A) Latest Revision. Since these units are
designed exclusively for outdoor operation, additional
flue venting systems are not required. Each unit
contains an operating charge of refrigerant as shipped.
Extreme mounting kits are available for slab
(BAYEXMK003A), utility curb (BAYEXMK002B), or curb
(BAYEXMK001A) mountings.
N
No
otte
e:: The packaged units have been evaluated in
accordance with the Code of Federal Regulations,
Chapter XX, Part 3280 or the equivalent.
"SUITABLE FOR MOBILE HOME USE".
Inspect Shipment
1. Check for damage after the unit is unloaded. Report
promptly to the carrier any damage found to the
unit. Do not drop the unit.
IIm
mp
po
orrtta
an
ntt:: To prevent damage to the sides and top
of the unit when hoisting, use
“spreader bars” see,
Installation — No Curb/Frame,” p. 15
.
2. Check the unit’s nameplate to determine if the unit
is correct for the intended application. The power
supply must be adequate for both the unit and all
accessories.
3. Check to be sure the refrigerant charge has been
retained during shipment. Remove the Compressor
access panel to access the 1/4" flare pressure taps.
4. The Flue Hood is included with the unit’s literature
pack.
5. If this unit is being installed on a curb, verify that
the correct curb is provided with the unit.
•
4YCZ5024 and 4YCZ5036 use model
BAYCURB050
•
4YCZ5048 and 4YCZ5060 use model
BAYCURB051
6. If the unit is being hoisted, accessory kit
BAYLIFT002B is recommended. It includes a kit of
four (4) lifting lugs and instructions.
N
No
otte
e:: If practical, install any internal accessories to the
unit at the shop.
