Ladder Diagram - Mr. Heater MHU 50NG Guide D'utilisation Et Manuel Du Propriétaire

MAXIMUM LOAD NOT TO EXCEED
20VA AT 24V, CLASS 2.
COM
S18
DISCONNECT ALL POWER
BEFORE SERVICING.
FOR PROPER GROUNDING,
REFER TO LOCAL CODES.
S10
DESCRIPTION
1(S47)
KEY COMPONENT
A3 CONTROL, BURNER, IGNITION
B3 MOTOR, FAN
SPARK
B6 MOTOR, COMBUSTION AIR BLOWER
6VI VALVE, GAS ELECTRODE
510 LIMIT, PRIMARY, GAS
518
SWITCH, COMB, AIR BLWR PRONE
(1) S47 SWITCH-FLAME ROLLOUT 1
(2) S47 SWITCH-FLAME ROLLOUT 2
T1
TRANSFORMER CONTROL
BLACK
L1
WHITE
N
L1
EQUIPMENT
GROUND
E-13
Compact Unit / Utility Heater
BLUE
24V POWER (R)
A3
R
24VAC
HOT
FLAME
F5
SENSOR
ONLY WITH
MANUAL FAN
BLOWER (G)
BROWN
PSW
G
5
RTN
RED
PSW
2
HEAT 1 (W1)
OUT
W
ORANGE
HIL
1
RTN
BLUE 6 HIL
OUT
2(S47)
YELLOW
VLV
3
RTN
GV1
VLV
4
OUT
GND PROGRAMMABLE
THERMO.
24V COMMON (C)
C
GND
T1 24V
YELLOW
120V
LINE VOLTAGE FIELD INSTALLED
CLASS II 24 VAC FIELD INSTALLED
DENOTES OPTIONAL COMPONENTS

LADDER DIAGRAM

A3
CWB HTG
ACB ACB ACB
BLWR ACC ACC ACC
LOW HEAT COOL
B6
B3
Operating Instructions and Owner's Manual
Red
White
OPTIONAL THERMOSTAT
INSTALLATION
IT IS RECOMMENDED TO USE
18AWG WIRE WHEN INSTALLING
THE THERMOSTAT. CONNECT
WARNING-
THERMOSTAT WIRING TO
ELECTRIC SHOCK HAZARD, CAN CAUSE INJURY
OR DEATH, UNIT MUST BE GROUNDED IN ACCORDANCE
TERMINALS 'R' AND 'W' AS
WITH NATIONAL AND LOCAL CODES.
ILLUSTRATED ON THE SCHEMATIC
SET THERMOSTAT HEAT ANTICIPATION
DIAGRAM.
ROBERTSHAW VALVE............ .4
NOTE: THERMOSTAT TERMINAL
CONNECTIONS ARE MOUNTED ON
THE BACK PANEL OF THE HEATER.
EXTERNAL THERMOSTAT
TERMINAL STRIP WARNING: DO
NOT CONNECT LINE POWER TO
THE THERMOSTAT TERMINAL
STRIP.