8
I-RX-RG-RPV (09-19) PN1027501R0
GENERAL INFORMATION—CONTINUED
Gas Connections
Table 7. Gas Connections
RG
Series
Model
RX
Series
Model
RPV
Series
Model
Unit
Size
Gas Type
Natural Propane
Connection Size (Inches)
(H)-RG,CRG (H)-RX,CRX
—
75
1/2
100
(H)-RPV
125
150, 175
200, 225
250
(H)-RG (H)-RX 300
3/4 1/2
(H)-CRG (H)-CRX 300
(H)-RG,CRG (H)-RX,CRX
350
400
INSTALLATION
Uncrating
This furnace was test operated and inspected at the factory prior to crating and was in operating condition. If the
furnace has incurred any damage in shipment, document the damage with the transporting agency and immediately
contact your Reznor distributor.
Pre-Installation Checklist
Check the rating plate for the gas specifications and electrical characteristics of the furnace to ensure that they
are compatible with the gas and electric supplies at the installation site.
Read this booklet and become familiar with the installation requirements of your particular furnace. If you do not
have knowledge of local requirements, check with the local gas company or any other local agencies who might
have requirements concerning this installation.
Make preparations for the necessary supplies, tools, and manpower.
Check to see if there are any field-installed options that need to be assembled to the furnace prior to installation.
Some gas control options will have parts either shipped loose with the heater or shipped separately. If your unit
is equipped with any of the gas control options listed in Table 8, ensure that these parts are available at the job
site. Other shipped-separate options could include a gas shutoff valve, a vertical vent terminal, a thermostat, a
different control switch, or a disconnect switch.
Table 8. Gas Control Option Components
Component Gas Control Option PN
Thermostat
AG7*
48033
Control switch
AG3, AG6, AG8, AG9, AG13, AG15, AG16**
29054
Remote temperature selector
AG9**
48042
AG15, AG16**
115848
AG39**
174849
Stage adder module
AG15, AG16**
115849
Remote display module
AG16**
115852
*Gas control option for heating.
**Gas control options for makeup air.
Reversing Airflow by Changing Direction of Heat Exchanger Air Baffles
NOTE: Models with prefix H are factory-built for high CFM capability and include only the top baffle
support shown in Figure 4. To reverse airflow, move the top baffle support. The top baffle support
must always be on the entering air side of the unit.
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