66389-BIM-C-1208
8
Johnson Controls Unitary Products
2.
National Fuel Gas Code, ANSI Z223.1 - Latest Edition
3.
Gas-Fired Central Furnace Standard, ANSI Z21.47a. -
Latest Edition
4.
Local building codes, and
5.
Local gas utility requirements
In Canada:
1.
Canadian Electrical Code, CSA C22.1
2.
Installation Codes, CSA - B149.1.
3.
Local plumbing and waste water codes, and
4.
Other applicable local codes.
Refer to Tables 1 & 2 for unit application data.
After installation, gas fired units must be adjusted to obtain a
temperature rise within the range specified on the unit rating
plate.
If components are to be added to a unit to meet local codes,
they are to be installed at the dealer’s and/or customer’s
expense.
Size of unit for proposed installation should be based on heat
loss/heat gain calculation made according to the methods of
Air Conditioning Contractors of America (ACCA).
This furnace is not to be used for temporary heating of build-
ings or structures under construction.
.
The
Simplicity
® control board used in this product
will effectively operate the cooling system down to
0°F when this product is applied in a comfort cooling
application for people. An economizer is typically
included in this type of application. When applying
this product for process cooling applications (com-
puter rooms, switchgear, etc.), please reference
applications bulletin AE-011-07 or call the applica-
tions department for Unitary Products @ 1-877-
UPG-SERV for guidance. Additional accessories
may be needed for stable operation at temperatures
below 30° F.
FIGURE 3 -
DW-12 COMPONENT LOCATION
Simplicity
™ Control
board w/screw
connectors for T-stat
wiring and Network
Connection
Disconnect
location (optional
disconnect switch)
Filter access
(2" throw-away)
Filter drier (solid core)
Condenser Section
Belt-drive blower
motor
Slide out motor
and blower
assembly for easy
adjustment and
service
Power ventor
motor
20-gauge
aluminized steel
tubular heat
exchanger for
long life
(stainless steel
option)
Two-stage gas heating to
maintain warm,
comfortable temperature
Intelligent control
board for safe and
efficient operation
Slide-out drain pan
with steel ¾" NPT
female connection
Compressor #1 access
(high-efficiency
compressor w/crankcase
heater)
Side entry power
and control wiring
knockouts
Toolless door
latch
Roof curbs in eight-and
fourteen-inch heights.
Roof curbs for
transitioning from DHB/
DHC/DUS footprint to the
DU/DL/DW Series
footprint are available
(field-installed accessory)
Base rails w/
forklift slots
( three sides)
and lifting
holes
Compressor #2
access
(high-efficiency
compressor w/
crankcase heater)
Dual stage cooling
for maximum
comfort
Second model
nameplate inside
hinged access panel
