Reznor LDAP User manual

Form I-OPT-MH, P/N 102247 R8, Page 1

Applies to: Models LDAP, UDAP, APD, UDAS,

UDBP, UDBS, UEAS, F, B, VR

Description/

Application

These options are designed to permit the control of up to six heaters (one "Primary" heater

and one to ve "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.

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

Form I-OPT-MH (2-16)

Obsoletes Form I-OPT-MH (Version D.2)

Application

by Voltage

& Model

Model LDAP

Models UDAP, APD,

UDAS, UDBP,

UDBS, and UEAS**

Models F, B, and VR

Application

by Voltage

& Model

115/1 N/A

CL31 for both the

Primary and 1st

Secondary Heater

plus a CL32 each

for the 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.

115/1

208/1 CL31 for both the Primary

and 1st Secondary Heater

plus a CL32 each for the

2nd, 3rd, 4th, and 5th

Secondary Heaters. *

CL32 for the Primary Heater plus

CL32 each for 1st, 2nd, 3rd, 4th, and

5th Secondary Heaters.

208/1

230/1 230/1

208/3 N/A 208/3

230/3 N/A 230/3

460/3 N/A 460/3

575/3 N/A

CL31 for both the Primary and 1st

Secondary plus a CL32 each for 2nd,

3rd, 4th, and 5th Secondary Heaters.

575/3

* Model LDAP 400 can have ve 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.

Kits for Model LDAP

Option CL31 for LDAP - Pkg P/N 208366 for Primary and One Secondary Unit

Qty P/N Description

2208365 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.

2208185 Wiring Diagram Label

Option CL32 for LDAP - Pkg P/N 208367 for each Additional Secondary Unit

Qty P/N Description

1208365 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.

1208185 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

1194808 Transformer 40VA

2197157 Relay Assemblies each consisting of one P/N 18549 relay, wired and

mounted on a specially designed bracket.

2195249 Self-drilling screw for attaching relay bracket

216228 Cable Clamp 3/16"

2197164 Wiring Diagram Label

1197160 Wiring Harness Assembly (brown wires)

Form I-OPT-MH, P/N 102247 R8, Page 2

Kit Components by

Model (cont'd)

Kits for Models UDAP, APD, UDAS, UDBP, UDBS, and UEAS (cont'd)

Opt CL31 for UDBP/UDBS – Pkg P/N 202958 for Primary & One Secondary Heater

Qty P/N Description

2197157 Relay Assemblies each consisting of one P/N 18549 relay, wired and

mounted on a specially designed bracket.

2195249 Self-drilling screw for attaching relay bracket

216228 Cable Clamp 3/16"

2197164 Wiring Diagram Label

1197160 Wiring Harness Assembly (brown wires)

Opt CL32 for UDAP/APD/UDAS/UDBP/UDBS/UEAS – Pkg P/N 197156 for Each

Additional Secondary Heater

Qty P/N Description

1197157 Relay Assembly consisting of one P/N 18549 relay, wired and

mounted on a specially designed bracket.

1195249 Self-drilling screw for attaching relay bracket

116228 Cable Clamp 3/16"

1197164 Wiring Diagram Label

Kits for Model VR

Option CL31 for VR – Pkg P/N 205685 for Primary and One Secondary Heater

Qty P/N Description

2102243 Relay Assemblies each consisting of one P/N 18549 relay, wired and

mounted on a specially designed bracket.

1194808 Transformer 40VA

116354 Twist-on Wire Connector (Orange)

498872 Spacers

4121033 Screws #8 x 1" lg

216228 Cable Clamp 3/16"

2197164 Wiring Diagram Label

Option CL32 for VR – Pkg P/N 205686 for Each Additional Secondary Heater

Qty P/N Description

1102243 Relay Assembly consisting of one P/N 18549 relay, wired and

mounted on a specially designed bracket.

298872 Spacers

2121033 Screws #8 x 1" lg

116228 Cable Clamp 3/16"

1197164 Wiring Diagram Label

Kits for Models F and B

Option CL31 for Models F & B – Pkg P/N 102248 for Primary and One Secondary

Heater

Qty P/N Description

1102708 Transformer 35VA – Basler #BE141640-RAK

2103152 Sheetmetal Screws, #6 x 1-1/2 “ long (for transformer)

2111233 Tinnerman Clips, #C1110-62 (for transformer screws)

2102243 Relay Assemblies each consisting of one P/N 18549 relay, wired and

mounted on a specially designed bracket.

216228 Cable Clamp 3/16"

2131127 Wiring Diagram Label

Option CL32 for Models F & B – Pkg P/N 102249 for Each Additional Secondary

Heater

Qty P/N Description

1102243 Relay Assembly consisting of one P/N 18549 relay, wired and

mounted on a specially designed bracket.

116228 Cable Clamp 3/16"

1131127 Wiring Diagram Label

Form I-OPT-MH, P/N 102247 R8, Page 3

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

FIGURE 1A - Control Compartment showing Transformer Location, Models UDAP, APD, UDAS, and

UEAS "Primary" Heater

The transformer is mounted on the control board on the bottom of the control compartment.

These instructions are designed to assist a qualied electrician in installing this multiple

heater control kit. All electrical wiring and connections, including electrical grounding,

MUST be in accordance with the National Electric Code ANSI/NFPA No. 70 (latest edi-

tion) or, in Canada, with the Canadian Electrical Code, Part 1-C.S.A. Standard C22.1 In

addition, the installation must comply with local ordinances and applicable gas company

requirements.

Follow the instructions that apply to the option and model of heater.

1. Turn off the gas and electric power.

2. Change the Transformer (does not apply to Model LDAP, UDBP, or UDBS) –

applies to OPTION CL31 installation on the "Primary" unit only

Refer to the illustration (FIGURE 1A, 1B, or 1C) for the unit being serviced.

Remove or open panels as required and locate the factory-installed transformer.

Mark and disconnect the wires. Remove the transformer.

Using the same screws (except Models F and B; see FIGURE 1C), install the 35 or

40 VA transformer from the kit. Connect the wires. Close the panel.

Installation

Instructions

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.

Form I-OPT-MH, P/N 102247 R8, Page 4

Installation

Instructions (cont'd)

FIGURE 1C - Transformer Location, Model F or B "Primary" Heater

Rear View

Transformer

Terminal

Strip

Remove the left outer side panel

(left when facing the rear of the

heater), exposing the inner side

panel and the wiring.

Locate the factory-installed

transformer. Mark and disconnect

the wires. Remove the transformer.

Through the “large” hole in the

side panel (for mounting the

transformer), slide the Tinnerman

clips over the new transformer.

Attach with the screws included in

the kit. Connect the wires to the new

transformer.

Replace the outer side panel.























 













FIGURE 1B -

Bottom View

showing

Transformer

Location, Model

VR "Primary"

Heater

2. Change the Transformer (cont'd)

Form I-OPT-MH, P/N 102247 R8, Page 5

FIGURE 2A - Model LDAP

Remove the access panel from

the main heat section.

Locate the position on the

control panel for the new relay.

Attach the relay with the

screws provided in the kit.

3. Install a Relay or Relay Bracket Assembly on the “Primary” Unit and all

“Secondary” Units – Option CL31 and Option CL32. Select the appropriate

FIGURE (2A, 2B, 2C, or 2D) for the Model of Heater.



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





















FIGURE 2B - Models UDAP, APD,

UDAS, UDBP, UDBS, UEAS

Model UD Sizes 30, 45, 60, 75,

100, 125 - On the rear of the

heater, position the bracket as

illustrated.

Remove the screws from the edge

of the cabinet bottom.

Re-insert the screws attaching the

relay bracket.

Model UD Sizes 150, 175, 200,

225, 250, 300, 350, 400 and all

UEAS - On the rear of the heater,

position the bracket as illustrated.

Remove the screw on the left from

the edge of the cabinet bottom.

Re-insert the screw attaching the

bracket.

Secure the other side of the

bracket with the self-drilling screw

in the kit.

Form I-OPT-MH, P/N 102247 R8, Page 6







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FIGURE 2C - Model VR

On the end of the burner/control box, remove and

discard the screws holding the thermostat terminal strip.

Use the screws and spacers in the option package to

attach the relay bracket and to re-attach the terminal

strip. Follow the sequence below, starting at the burner/

control box

- rst the terminal strip,

- second the spacers,

- third the relay bracket,

- and fourth (on the left side only) – put the blue and

brown wires through the plastic cable clamp and

position the cable clamp on top of the relay bracket.

FIGURE 2D - Model F or B

On the rear of the heater, remove the screws

that hold the thermostat terminal strip. Slide

the relay bracket underneath the terminal strip.

Re-insert the screw on the right side. Put the

blue and brown wires into the plastic cable

clamp, and on the left end of the terminal strip,

position the cable clamp on top. Fasten with the

other screw.

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

 

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NOTE: The 1" long screws and the spacers in the

option package will not be used.

4. Wiring Diagram Label – All Heaters

Installation

Instructions (cont'd)

See FIGURE 3A, 3B, or 3C for Option CL31 and CL32 wiring diagram.

Model FIGURE Label

LDAP ................3A...............208185

UDAP & APD....3B...............197164

UDAS................3B...............197164

UDBP................3B...............197164

UDBS................3B...............197164

UEAS ................3B...............197164

VR .....................3B...............197164

F........................3C...............131127

B.......................3C...............131127

Select the wiring diagram for the model of heater being installed. Check the

appropriate box on each diagram for the heater function (Primary or Secondary).

Adhere the label in the location specied below for the model of heater .

Packaged Model LDAP – Position the label (P/N 208185) on the inside of the access

panel. Wipe the area with a clean, dry cloth. Remove the backing and adhere the

wiring diagram.

Unit Heater Models UDAP, APD, UDAS, UDBP, UDBS, and UEAS – Position the

label (P/N 197164) on the bottom rear corner of the access panel. Wipe the area with

a clean, dry cloth. Remove the backing and adhere the wiring diagram.

Infrared Heater Model VR – Position the label on the rear of the burner box above

the terminal strip. Wipe the area with a clean, dry cloth. Remove the backing and

adhere the wiring diagram.

NOTE: The spacers are required to allow the access door to open.

3. Install a Relay or Relay Bracket Assembly (cont'd)

Form I-OPT-MH, P/N 102247 R8, Page 7

FIGURE 3A- Multiple

Heater Control Wiring

Diagram Label for Model

LDAP, P/N 208185

Label

208185

CHECK APPROPRIATE BOX:

PRIMARY HEATER SECONDARY HEATER

SECONDARY

HEATER

PRIMARY

HEATER

1W1WR R

CRIMP TERMINAL

BR BR BR BR

RLBLBLBLB

CONTROL DEVICE

OR OTHER

THERMOSTAT

WRB

RBL

FIELD SUPPLIED WIRING

FIELD WIRING HAVING A MINIMUM TEMPERATURE RATING OF AT LEAST 105 DEGREES C.

SHALL BE USED. SUPPLY CIRCUIT WIRING SHALL HAVE A MINIMUM SIZE OF 18 AWG.

ADDITIONAL

SECONDARY HEATERS

TIME CLOCK

CONTACTS

OPTIONAL

DEVISE

CONTROL

OR OTHER

WD# 189578

For future identication,

check appropriate box on

each wiring diagram label.

Unit Heater Models F and B – Position the label (P/N 131127) in the lower right

corner of the outer left side panel (left when facing the rear of the heater). Wipe the

area with a clean, dry cloth. Remove the backing and adhere the wiring diagram.

5. Control Wiring - All Models

Follow the diagram label to wire the controls.

FIGURE 3B - Multiple

Heater Control Wiring

Diagram Label for

Models VR, UDAP, APD,

UDAS, UDBP, UDBS,

and UEAS, P/N 197164

PRIMARY HEATER SECONDARY HEATER

SECONDARY

HEATER

PRIMARY HEATER

TO COMMON SIDE

OF TRANSFORMER

TO “COM” ON

DSI CONTROL

TO ADDITIONAL

SECONDARY

HEATERS

THERMOSTAT

OR OTHER

CONTROL DEVICE

Label

197164

For future identication,

check appropriate box on

each wiring diagram label.

(NOTE: VR Models do

not have a "W2" terminal.

Splice between the DSI

control "COM" and 24V on

the transformer and use

the twist-on wire connector

provided to connect the

wires.

Form I-OPT-MH, P/N 102247 R8, Page 8

131127

CHECK APPROPRIATE BOX:

PRIMARY HEATER SECONDARY HEATER

REV #2

3 1

PRIMARY

HEATER

R W1 W1 R

GRD STRIP

OR G67

ON G77

BR BR BR BR

BL BL BL BL R

CONTROL DEVICE

OR OTHER

THERMOSTAT

BR W

RBL

FIELD SUPPLIED WIRING

FIELD WIRING HAVING A MINIMUM TEMPERATURE RATING OF AT LEAST 105 DEGREES C.

SHALL BE USED. SUPPLY CIRCUIT WIRING SHALL HAVE A MINIMUM SIZE OF 18 AWG.

ADDITIONAL

SECONDARY HEATERS

TIME CLOCK

CONTACTS

OPTIONAL

DEVISE

CONTROL

OR OTHER

NOTE #1

NOTE #1: ON STANDING PILOTS MODELS, ATTACH TO BROWN WIRE ON GAS VALVE.

HEATER

SECONDARY

FIGURE 3C - Multiple

Heater Control Wiring

Diagram Label for

Models F and B,

P/N 131127

For future identication,

check appropriate box on

each wiring diagram label.

Installation

Instructions (cont'd)

Do not exceed the control wire lengths shown in the table.

CAUTION: Be careful not to short thermostat leads to a metal

surface. Doing so will cause the transformer to fail, requiring it to

be replaced.

6. Turn on the electric power and the gas. Follow the lighting instructions to

operate the heater.

Check the control system for proper and safe operation.

Field Control Wiring (Length and Gauge)

Wire Type Wire Gauge Maximum Wire Length* Maximum Distance

TEW 18 500 ft (152M) 250 ft (76M)

TEW 14 1300 ft (457M) 650 ft (198M)

TEW 12 2100 ft (640M) 1050 ft (320M)

*Wire length equals wire for circuit going plus wire for returning circuit.

5. Control Wiring (cont'd)

Specications & illustrations subject to change without notice and without incurring obligations.

All marks are the property of their respective organizations.

O’Fallon, MO I Printed in U.S.A. (2/16)

Form I-OPT-MH (2-16)

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