Reznor UDBS Option - Installation - Thermostat Option - Manual

Form RZ-NA I-OPT-T (Version A), P/N 197264 (Rev 4), page 1
APPLIES TO: All Sizes of Models UDAP, UDAS,
UDBP, UDBS with single-stage or two-stage valve;
Model LDAP 400 with two-stage valve;
Model LDAP 400, 800, and 1200 with single-stage valve
Thermostat Options CL18 and CL7
Installation Form RZ-NA I-OPT-T (Version A)
Obsoletes Form RZ-NA I-OPT-T
®
Description and
Application Option CL18 is a two-stage thermostat and subbase with an auto/on fan (blower)
switch and an off/auto system switch. Option CL7 is a two-stage thermostat and
subbase with an off/auto system switch. These thermostat options apply to the
Reznor Models listed, but the application varies. Select the model and applica-
tion from the table below and follow the appropriate instructions.
Kit Components
Two-Stage Thermostat
with Subbase
Model Application Installation Instructions
UDAP, UDAS, UDBP, UDBS
(all sizes) with a two-stage gas
valve (Option AG2)
LDAP 400 with a two-stage
gas valve (Option AG2)
LDAP 800 and LDAP 1200
with single-stage gas valves
(AG1) Staged heat sections - Based on the temperature settings,
first stage fires one heat section on a Model 800 or one or
two heat sections on a Model 1200. Second stage fires all
heat sections.
UDAP, UDAS, UDBP, UDBS,
and LDAP (all sizes) with
single stage gas valve(s)
(AG1) Recirculation and Single Stage Heat - Based on the
temperature settings, first stage provides automatic fan or
blower only recirculation (no heat) and the second stage
fires the unit at full fire. READ CAREFULLY AND
FOLLOW THE
INSTRUCTIONS ON THIS
SHEET.
Two stages of heat - Based on the temperature settings,
the thermostat is used to provide two stages of heating by
controlling operation of the two-stage gas valve. THIS INSTRUCTION SHEET
DOES NOT APPLY.
Discard this
sheet. Install the thermostat by
following the manufacturer’s
instructions that are provided with the
thermostat and the wiring diagram on
the heater. Be sure to comply with the
requirements for thermostat location.
Installation Instructions for Automatic Fan or Blower Only
Recirculation Control and Single-Stage Heating
WARNING: Improper installation, adjustment, alteration, service,
or maintenance can cause property damage, injury or death. Read
the installation, operation, and maintenance instructions thoroughly
before installing or servicing this equipment.
Installation
Instructions
Qty P/N Description
1 93436 Two-Stage Thermostat, Honeywell #T874F1130, with
Subbase, Honeywell #Q674C1009
1 123942 Thermostat Terminal Jumper
1 197264 Instruction Sheet, Form I-OPT-T
Qty P/N Description
1 93435 Two-Stage Thermostat, Honeywell #T874F1130 with Subbase,
Honeywell #Q674G
1 197264 Instruction Sheet, Form I-OPT-T
P/N 208945, Option CL7 Thermostat Kit for Model LDAP, UDAP, UDAS,
UDBP, or UDBS includes:
P/N 197265, Option CL18 Thermostat Kit for Model LDAP, UDAP,
UDAS, UDBP, or UDBS includes: