44
FIGURE 13.
ALTERNATE WIRING ARRANGEMENT FOR MEP CONTROLS
S2
3
5
4
1
MAIN
IGNITION
7
8
2
A
6
STOP
PILOT
S1
START
LIMIT SW
FUEL VALVE
ALARM
ON-OFF
HOT
NEUTRAL
LR-1
LR-2
LATCH
AIR FLOW
SWITCH
A. FOR MANUAL
A START-STOP STATION MAY BE ADDED TO REQUIRE
OPERATOR START-UP EACH TIME THE BURNER FIRES.
S2
3
5
4
1
IGNITION
7
8
2
A
6
PILOT
S1
B. MULTIPLE BURNER SYSTEMS
S2
3
5
4
1
IGNITION
7
8
2
A
6
PILOT
S1
LIMIT
R
MANUAL RESET
MAIN GAS VALVE
ALARM
S.P.D.T.
RA
ALARM SILENCE
SWITCH
G
R
STOP
START
LR-1
AIR FLOW
BLOWER
OR
LATCH
HOT
NEUTRAL
MULTIPLE BURNER SYSTEMS UTILIZING SEMI-AUTOMATIC OPERATION INCORPORATE THE FIREYE MODULAR MI-
CROM CONTROLS IN A CASCADING SEQUENCE WHEN PILOT #1 IS PROVEN. TRIAL FOR IGNITION FOR PILOT #2
BEGINS. WHEN ALL PILOTS ARE PROVEN THE SAFETY SHUTOFF VALVE MAY BE MANUALLY OPENED. FLAME FAILURE
OF ANY BURNER WILL TRIP THE MAIN FUEL VALVE AND SOUND ALARM.
THE TOTAL CONNECTED LOAD MUST NOT EXCEED THE RATING OF THE FIRST CONTROL.
VALVE
RELAY COIL
MAIN GAS VALVE
GAS VALVE
RELAY
GAS VALVE
SWITCH
SWITCH
BLOWER
OR
CONTACTOR
FIRST STAGE
SECOND STAGE
CONTACTOR
IMPORTANT: Use moisture resistant wire rated 90°C minimum
.
Содержание MOISTURE Link G2 DP
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