
DIAGRAMA DE ESCALERA
IT IS RECOMMENDED
TO
USE
OPTIONAL THERMOSTAT
INSTALLATION
18
AWG WIRE WHEN INSTALLING
THE THERMOS
TAT
. CONNECT
TERMINALS ‘R’ AND ‘W’
THERMOS
TA
T WIRING
TO
AS ILLUSTRATED ON THE
SCHEMATIC DI
AG
RAM.
t Ü á í
É
NO
TE: THERMOS
TA
T TERMINAL
CONNECTIONS ARE MOUNTED
ON THE BACK PANEL OF THE
HEATER.
EXTERNAL THERMOS
TA
T
TERMINAL STRIP WARNING:
DO
NOT
CONNECT LINE POWER
TO
THE THERMOS
TA
T TERMINAL
STRIP.
Red
White
Unidad compacta/Calefactor de trabajo
Instrucciones de uso y manual del usuario
35
DIAGRAMA DE CABLEADO
1
2
MAXIMUM LOAD NOT TO EXCEED
20VA AT 24V,CLASS 2
(2) S47 USED IN
75 AND 125 ONLY
NOTE-
IF ANY WIRE IN THIS APPLIANCE IS REPLACED,
IT MUST BE REPLACED WITH WIRE OF LIKE
SIZE, RATING AND INSULATION THICKNESS.
IF ANY WIRE IN THIS APPLIANCE IS REPLACED,
IT MUST BE REPLACED WITH WIRE OF LIKE
SIZE, RATING AND INSULATION THICKNESS.
WARNING-
ELECTRIC SHOCK HAZARD CAN CAUSE INJURY
OR DEATH. UNIT MUST BE GROUNDED IN
ACCORDANCE WITH NATIONAL AND LOCAL
CODES.
ELECTRIC SHOCK HAZARD CAN CAUSE INJURY
OR DEATH. UNIT MUST BE GROUNDED IN
ACCORDANCE WITH NATIONAL AND LOCAL
CODES.
DISCONNECT ALL POWER
BEFORE SERVICING!
DISCONNECT ALL POWER
BEFORE SERVICING!
1
L
N
G
BLACK
WHITE
CHASSIS
GROUND
CONNECT CHASSIS
GROUND TO
EARTH GROUND
CONNECT CHASSIS
GROUND TO
EARTH GROUND
LINE VOLTAGE FIELD INSTALLED
THERMOSTAT WIRING
24 Vac POWER
OPTIONAL FAN CONTROL
HEAT 1
COMMON
24VAC
HOT
24VAC
HOT
FLAME
1 TO 6
P1 ON BOARD
PRES. SW.
RETURN
PRES. SW.
RETURN
5
2
1
6
3
4
PRES. SW.
OUT
PRES. SW.
OUT
HIGH LIMIT
SW. RETURN
HIGH LIMIT
SW. RETURN
HIGH LIMIT
SWITCH OUT
HIGH LIMIT
SWITCH OUT
GAS VLV
RETURN
GAS VLV
RETURN
GAS VLV
OUT
GAS VLV
OUT
GND
A3
A3
ACC
ACC
CMB
BLWR
L1
B6
B3
BL
ACK
WHITE
BL
ACK
WHITE
(COM)
C4
GREEN
WHITE
GREEN/
YELLOW
BL
ACK
B
LUE
T1
120V
24V
THERMOST
A
T
WIRING
CONNECT
OR
ON
HEA
T
ER
GV1
BLUE
YELLOW
SPARK
ELECTRODE
SPARK
ELECTRODE
BLUE
BROWN
S10
(1)S47
(2)S47
S18
COM
RED
ORANGE
BROWN
FLAME
SENSOR
FLAME
SENSOR
R
G
W
C
R
G
W
C
R
G
W
C
2
80
,
L1
(HOT)
Black
Noir
White
Blanc
N
(NEUTRAL)
EQUIPMENT
GROUND
EQUIPMENT
GROUND
White
Blanc
Fan
Ventilateur
Black
Noir
Combustion Blower
Soufflerie De Ventilateur
Combustion Blower
Soufflerie De Ventilateur
White
Blanc
Black
Noir
Black
Noir
Transformer/
Transformateur
Transformer/
Transformateur
ACB COOL
ACB HEAT
ACB LOW
ACC
ACC
HTG ACC
CWB BLWR
ACB COOL
ACB HEAT
ACB LOW
ACC
ACC
HTG ACC
CWB BLWR
L1
120V
24V
Blue
Bleu
Orange
White
Blanc
White
Blanc
Blue
Bleu
Yellow
Jaune
Yellow
Jaune
Flame Sensor/
Detecteur de
renommee
Flame Sensor/
Detecteur de
renommee
Flame Rollout Switch
Flamber le commutateur
de deploiement
Flame Rollout Switch
Flamber le commutateur
de deploiement
Flame Rollout Switch
Flamber le commutateur
de deploiement
Flame Rollout Switch
Flamber le commutateur
de deploiement
Blue
Bleu
Red/
Rouge
Red/
Rouge
Air Switch/
lnterrupteur a air
Air Switch/
lnterrupteur a air
lgniter / Contact
Gas Valve /
Valve a gaz
Gas Valve /
Valve a gaz
EQUIPMENT
GROUND
EQUIPMENT
GROUND
24 VAC (HOT)
FLAME SENSOR
PSW RTN
PSW OUT
HIL RTN
HIL OUT
SPK ELE
VLV RTN
VLV OUT
GND
24 VAC (HOT)
FLAME SENSOR
PSW RTN
PSW OUT
HIL RTN
HIL OUT
SPK ELE
VLV RTN
VLV OUT
GND
24 V POWER (R)
MAN BLOWER (G)
HEAT 1 (W1)
MAN BLOWER (G)
HEAT 1 (W1)
GND PRO THER
24 V (COMM) (C)
GND PRO THER
24 V (COMM) (C)
THERMOSTAT
DESCRIPTION
KEY
COMPONENT
A3
B3
B6
C4
DL36
GV1
S10
S18
S47
T1
CONTROL BOARD
(PCB)
MOTOR- CIRCULATION
MOTOR-COMBUSTION AIR INDUCER
CAPACITOR-BLOWER MOTOR 1
RELAY-DELAY( N/A TO THESE MODELS)
VALVE- GAS
SWITCH - PRIMARY GAS
SWITCH-COMB AIR BLWR
SWITCH-FLAME ROLLOUT
TRANSFORMER- CONTROL
C5
CAPACITOR-IN DUCED DRAFT MOTOR
CAPACITOR USED IN 75, 80 AND 125 ONLY
CAPACITOR USED IN 125 ONLY
C5
Содержание MHU 125
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