Description/
Application
Application
by Voltage
Model LDAP
& Model
115/1
CL31 for both the Primary
208/1
and 1st Secondary Heater
plus a CL32 each for the
2nd, 3rd, 4th, and 5th
230/1
Secondary Heaters. *
208/3
230/3
460/3
575/3
* Model LDAP 400 can have five secondary heaters; Model LDAP 800 can have a maximum of three secondary
heaters; and Model LDAP 1200 can have a maximum of two secondary heaters. ** Model UEAS is 115 volt only.
Kit Components
by Model
Check the components
against the list for the
model being installed.
•
Model LDAP
•
Model UDAP & APD
•
Model UDAS
•
Model UDBP
•
Model UDBS
•
Model UEAS
•
Model F
•
Model B
•
Model VR
Installation of Multiple Heater Control, Options CL31 and CL32
These options are designed to permit the control of up to six heaters (one "Primary" heater
and one to five "Secondary" units; see note for LDAP limitations) with one single-stage ther-
mostat or with a time clock and single or multiple single-stage thermostats. For maximum
safety, the multiple control is done in the low voltage circuit. (Interruption of the supply volt-
age is not recommended.) Wiring lengths may not exceed those shown in the table on page
8. DO NOT use these multiple heater control options with a two-stage gas valve or a
two-stage thermostat.
Models UDAP, APD,
UDAS, UDBP,
UDBS, and UEAS**
N/A
CL31 for both the
Primary and 1st
Secondary Heater
plus a CL32 each
for the 2nd, 3rd, 4th,
N/A
and 5th Secondary
N/A
Heaters.
N/A
N/A
Kits for Model LDAP
Option CL31 for LDAP - Pkg P/N 208366 for Primary and One Secondary Unit
Qty
P/N
Description
2
208365 Relay Assemblies each consisting of one P/N 18549 relay, with attached
42" red wire, 42" white wire, 6" blue wire, and 6" brown wire -- all with
terminals.
2
208185 Wiring Diagram Label
Option CL32 for LDAP - Pkg P/N 208367 for each Additional Secondary Unit
Qty
P/N
Description
208365 Relay Assemblies each consisting of one P/N 18549 relay, with attached
1
42" red wire, 42" white wire, 6" blue wire, and 6" brown wire -- all with
terminals.
1
208185 Wiring Diagram Label
Kits for Models UDAP, APD, UDAS, UDBP, UDBS, UEAS
Opt CL31 for UDAP/ APD/UDAS/UEAS - Pkg P/N 197155 for Primary & One Secondary Heater
Qty
P/N
Description
1
194808 Transformer 40VA
2
197157 Relay Assemblies each consisting of one P/N 18549 relay, wired and
mounted on a specially designed bracket.
195249 Self-drilling screw for attaching relay bracket
2
2
16228 Cable Clamp 3/16"
197164 Wiring Diagram Label
2
1
197160 Wiring Harness Assembly (brown wires)
Obsoletes Form I-OPT-MH (Version D.2)
Applies to:
Models LDAP, UDAP, APD, UDAS,
Models F, B, and VR
CL31 for both the Primary and 1st
Secondary plus a CL32 each for 2nd,
3rd, 4th, and 5th Secondary Heaters.
CL32 for the Primary Heater plus
CL32 each for 1st, 2nd, 3rd, 4th, and
5th Secondary Heaters.
CL31 for both the Primary and 1st
Secondary plus a CL32 each for 2nd,
3rd, 4th, and 5th Secondary Heaters.
Form I-OPT-MH (2-16)
UDBP, UDBS, UEAS, F, B, VR
Application
by Voltage
& Model
115/1
208/1
230/1
208/3
230/3
460/3
575/3
Form I-OPT-MH, P/N 102247 R8, Page 1
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