Gas-Fired Products PTU Series Manual Do Utilizador

 

 Form 

#43343330 

 

–32– 

May 08

 

 
INTERNAL CONNECTION WIRING DIAGRAM —  Direct Spark Ignition 

 

Blower

Gas Valve

Air Switch

Transformer

Primary

120V

Secondary

24V

High Voltage

Cable

Electrode

Gap 1/8”

CONTINUE TO

ADDITIONAL

HEATERS

Terminal

Block

CONNECTION WIRING DIAGRAM

If any of the original wire as

supplied with the appliance must

be replaced. It must be replaced

with wiring material having a

temperature rating of at least

105oC. (18 AWG. - UL / CSA 600V

Type TEW)

When connecting the supply circuit

to the heater, wiring material

having a minimum size of 14 AWG

and a temperature rating of at least

90oC shall be used.

GND

V2

V1

(W)TH

Ignition Module (Fenwal)

(R) 24VAC

L1

IND

NC

P.SW

HV

S1

FACTORY WIRING

FIELD WIRING

L2 NEUTRAL

L1 (hot) 120V

THERMOST

AT

(optional line volt

age)

GROUND

MONITORING LIGHTS

Red

Light

Amber

Light

L1 Black

L2 Black

(ribbed)

Black

White

Black

(ribbed)

Green

Violet

Orange

Violet

White

Blue

Blue

Fuse 2A Fusible

Optional Low

Voltage (24V)

Thermostat

Remove jumper wire.

Red

(jumper)

Terminal

Block

TISS

(Tube Integrity

Terminal

Block
Plaque

Red

Green

Red

Flame Sensor

Red

Green

Red

Black
Black
Red

 

 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES: 
1.  If any of the original wire as supplied with the appliance must be replaced, it must be replaced with wiring 

material having a temperature rating of at least 105ºC. (18 Ga. CSA 600V Type TEW) 

2.  When connecting the supply circuit to the heater, wiring material having a minimum size of 14 AWG and a 

temperature rating of at least 90ºC shall be used. 

IGNITION MODULE TERMINAL DESIGNATIONS 
24VAC/R  24 VAC Supply to Module 

TH/W Thermostat 

Input 

PS/W 

Pressure Switch Input 

GND System 

Ground 

V1 Valve 

Power 

V2 Valve 

Ground 

L1 

120/240 VAC Input (Hot) 

IND Blower 

Output 

NC 

Alarm (if equipped) 

S1 

Remote Flame Sensor