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18-EB40D1-1C-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. This unit is listed by
Underwriters Laboratory. 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 LPG conversion kit is available. A high
altitude installation kit of additional orifice sizes 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) and
perimeter curb (BAYEXMK001A) mountings.
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.
IImmppoorrttaanntt:: To prevent damage to the sides and top
of the unit when hoisting, use
“spreader bars” see, “Rooftop
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.
• 4YCC4024–4036 use model BAYCURB050A
• 4YCC4042–4060 use model BAYCURB051A
6. If the unit is being hoisted, accessory kit
BAYLIFT002B is recommended. It includes a kit of
four (4) lifting lugs and instructions.
NNootteess::
• If practical, install any internal accessories to
the unit at the shop.
• 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”.
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