Reznor ADFH Unit Installation Manual - Manual (Page 4)

Form I-ADF, Page 4
3.1 Uncrating and Inspecting
Check for any damage that may have been incurred during shipment. If damage is
found, document the damage with the carrier and immediately contact an authorized
Reznor ® distributor.
Check the gas specifications and electrical voltage (system rating plate is in the control
compartment) to be sure that they agree with the utilities at the installation site.
Locate the 4x4 junction box with a 3-positon switch shipped inside the unit. (
NOTE:
Two exceptions - 1) If an optional remote console was ordered, this switch is mounted
on the console which is shipped separately. 2) If gas control Option AG37 was ordered,
the junction box is not included)
3.0 Uncrating and
Preparation
4.0. Clearances
and
Dimensions
4.1 Clearances to Combustibles
Clearance to combustibles is defined as the minimum distance from the heater to a
surface or object that is necessary to ensure that a surface temperature of 90°F above
the surrounding ambient temperature is not exceeded.
Top Control Side* Opposite Side Bottom
0 0 0 0
*In order to service the system, the minimum clearance on the control side of the unit
must be equal to the width of the unit.
3.2 Preparing for
Installation
Shipped-Separate Components
Depending on the gas and/or air controls selected, the following additional parts are
shipped loose in the unit or shipped separately.
Gas Control Options Shipped-Loose Parts
AG30, AG32, AG33, AG35 *Temperature Selector , Discharge Air Sensor
AG31 *Temperature Selector, Discharge Air Sensor, Space
Override Thermostat
AG36 Remote Console
AG49, AG50 Control Switch, P/N 29054
*If an optional remote console is ordered, this control may have been ordered to be
mounted on the console. The console is shipped separately.
Be sure that all shipped-separate accessories for the installation are available. Shipped-
separate accessories could include a roof curb, an indoor filter cabinet, an outside air
hood, a disconnect switch, a supply gas regulator, a door switch, an evaporative cool-
ing module, a fill and drain or freeze kit, and/or a water hammer arrestor.
Be sure that all necessary equipment, tools, and manpower are available at the instal-
lation site.
4.2 Dimensions
4.2.1 Dimensions of Models ADF/ADFH Sizes 300 and 500
Dimensions (inches) - Illustration in FIGURE 1A (Sizes 300 and 500)
Models
Horizontal Discharge Vertical** Discharge
ADF300 ADF500 ADF300 ADF500 ADFH300 ADFH500
A 34 47-3/4 34 47-3/4 34 47-3/4
B 31-1/16 44-13/16 31-1/16 44-13/16 31-1/16 44-13/16
C 85-13/16 85-13/16 85-13/16 85-13/16 109-1/2 109-1/2
D 11-27/32 12-11/16 - - - -
E 15-5/16 17-11/16 - - - -
F (inside) 15-15/16 14-13/16 15-15/16 14-13/16 15-15/16 14-13/16
G 17-1/2 16-3/8 - - - -
H (inside) 13-3/4 16-1/8 - - - -
J - - 64-19/32 62-11/32 64-19/32 62-11/32
K - - 13-13/16 16-1/16 13-13/16 16-1/16
M - - 7 8-1/8 7 8-1/8
N - - 8-1/8 21-3/4 8-1/8 21-3/4
P - - 7-13/32 7-13/32 31-3/32 31-3/32
** Models ADFH 300/500
have a motor compartment
required for high
temperature discharge.
Models 300/500 with
optional vertical discharge
have same cabinet length
as the standard horizontal
discharge unit.