Installation - Relay & Thermostats Installation Manual

Form RZ-NA-I-F/B-R, Mfg #98149 Rev 4, Page 1
HAZARD INTENSITY LEVELS
1. DANGER: Failure to comply will result in severe personal
injury or death and/or property damage.
2. WARNING: Failure to comply could result in severe per-
sonal injury or death and/or property damage.
3. CAUTION: Failure to comply could result in minor per-
sonal injury and/or property damage.
INSTALLATION FORM RZ-NA -I-F/B-R
Obsoletes Form 434/436-R (Version A)
APPLIES TO: Models F, FE, B, and BE
OPTION CL21 Relay
OPTIONS CL17, CL18,
CL19 & CL20 Thermostats
Option CL21 Relay
Option CL21 relay must be installed for automatic fan or blower con-
trol through the thermostat. Option CL21 includes the relay and the
required electrical connections for installation; it does not include the
thermostat.
Option CL21 Relay, Option Package (P/N 98497) includes:
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.
Hold the relay in line with the holes and attach it with the two
plastic fasteners.
INSTALLATION NOTE: If the relay is not installed in the correct
location, the relay wiring length will be incorrect.
4. Install the 4-Screw Terminal Strip -- If the heater is equipped
with a two-screw terminal strip, it must be replaced with the four-
screw terminal strip in the option package. Mark all wires and
disconnect them from the terminal strip.
INSTALLATION AND WIRING
INSTRUCTIONS FOR OPTIONAL RELAY
Installation should be done by a qualified agency in accordance with the
instructions on this sheet and in compliance with all codes and require-
ments of authorities having jurisdiction.
1. If the heater is installed, turn off the gas and the electric
power.
2. Remove the outer panel on the left side of the heater (left when
facing the back of the heater), exposing the inner side panel and
wiring.
3. Attach the Relay -- On the vertical partition of the inner side panel,
locate the pre-punched holes for mounting the relay (See Figure 1).
Figure 1 - Relay Installation
DESCRIPTION
Plastic
Dart
Fasteners
Vertical
Partition
Inner Side Panel
Relay Mounting Locaiton
Relay
Cable
Holder
(NOTE: Some heaters
were manufactured with
a horizontal metal
partition in place of the
cable holder shown in
the illustration. If your
heater has a metal
partition, be sure to
install the bushing in the
hole to protect the
wires.)
Option Description Option Pkg P/N
CL21 Relay 98497
CL17 One-Stage Thermostat with Relay 98474
CL18 Two-Stage Thermostat with Relay 98494
CL19 Air Recirculation Kit 98495
CL20 Air Recirculation Kit with Summer
Fan/Blower Switch
98496
Item Qty P/N Description
1 1 98118 RBM Relay
2 2 101798 Plastic Dart Fastener
3 1 96511 4-Screw Terminal Strip Connector
4 2 97023 Black Wire Assembly, 14 gauge x 8" long
5 1 97478 Brown Wire Assembly, 18 gauge x 18" long
6 1 98125 Purple Wire Assembly, 18 gauge x 18" long
7 1 98117 Op en/Closed Bushing (See NOTE, Figure 1)
Thermostat Options
In addition to the thermostat, Thermostat Options CL17, 18, 19 and 20
include the following components:
Option
CL17 CL18 CL19 CL20
Same Components by Item No.
as in Option CL21 above
Items 1-
7 (all)
Items 1-
6
Items 1-
7 (all)
Items 1-
7 (all)
Additional Component
Terminal Jumper, P/N 123942
N/A 1 N/A 1
Install the thermostat according to the manufacturer's instructions. Make
wiring connections according to the wiring diagram illustrations in Fig-
ure 4 on the reverse side of this sheet. Follow the instructions below
for installing the relay.
®