P7810A-D PRESSURETROL® CONTROLLER
65-0268—1
6
Fig. 7. Wiring diagram for typical P7810 installation using
Series 90 Modutrol® Motor.
Fig. 8. Firing rate wiring diagram using P7810B,C
Pressuretrol® Controller and Series 90 Modutrol® Motor
with manual position potentiometer and auto-manual
switch.
Fig. 9. Series 70 Motor with auto/manual switch, using
205860 Minimum Position Potentiometer.
Fig. 10. Series 70 Motor with auto/manual switch and 12
Vdc source.
M11892D
7800 SERIES
PROGRAMMER
MODUTROL®
MOTOR
P7810 PRESSURETROL®
CONTROLLER
HIGH
COMMON
237
OHM
66.5
OHM
MODULATION
LOW
9K1
9K2
8K2
8K1
L2
4
6
L2
L1
120 VAC LINE
VOLTAGE
120 VAC LINE
VOLTAGE
7800 SERIES SHOWN. REFER TO SPECIFICATIONS PACKED WITH THE
PROGRAMMER FOR WIRING OF OTHER PRIMARY SAFETY CONTROLLERS.
MODUTROL® MOTOR MUST BE MODUTROL III OR MODUTROL IV,
SERIES 90, ELECTRONIC BALANCE RELAY TO OPERATE AS SHOWN.
PART OF 4074EDC OR 4074EED BAG ASSEMBLY ORDERED SEPARATELY.
ALARM ON C AND D MODELS ONLY.
1
2
3
3
3
4
4
1
2
12
13
15
14
R
B
W
–
+
4 TO 20mA
ALARM
FIELD WIRING
2K1 1K1
DEVICE WIRING
OUTPUT
3K1
14
LOW FIRE
15
MODULATE
13
COMMON
8K1
8K2
9K2
9K1
AUTO
MAN
66.5
OHM
237
OHM
12
HIGH FIRE
7800 SERIES
PROGRAMMER
W
M20568C
R
B
+
–
MODUTROL IV
MOTOR
CONTROLLER
P7810
(4-2O mA)
SERIES 90
1K
OHM
7800 SERIES SHOWN. REFER TO SPECIFICATIONS PACKED WITH THE
PROGRAMMER FOR WIRING OF OTHER PRIMARY SAFETY CONTROLLERS.
1
1
LOW FIRE
14
MODULATE
15
COMMON
8K1
8K2
9K2
9K1
AUTO
MAN
13
HIGH FIRE
7800 SERIES
PROGRAMMER
12
+
M20569C
205860
1
2
24V AC
MOD MOTOR
3
4
–
F
+
–
+
–
MODUTROL IV
MOTOR
CONTROLLER
P7810
(4-2O mA)
REMOTE
MINIMUM
POSITION
POTENTIONMETER
SERIES 70
(M7284)
1
1
7800 SERIES SHOWN. REFER TO SPECIFICATIONS PACKED WITH THE
PROGRAMMER FOR WIRING OF OTHER PRIMARY SAFETY CONTROLLERS.
ONLY 50% MOTOR AUTHORITY IS AVAILABLE WHEN USING THE 205860
POTENTIOMETER WITH THE SWITCH IN THE MANUAL POSITION.
2
2
14
LOW FIRE
15
MODULATE
13
COMMON
8K1
8K2
9K2
5K
OHM
12V DC
9K1
AUTO
12
HIGH FIRE
7800 SERIES
PROGRAMMER
M20570C
F
+
+
–
–
+
–
MODUTROL IV
MOTOR
CONTROLLER
P7810
(4-2O mA)
SERIES 70
(M7284)
MAN
7800 SERIES SHOWN. REFER TO SPECIFICATIONS PACKED WITH THE
PROGRAMMER FOR WIRING OF OTHER PRIMARY SAFETY CONTROLLERS.
1
1
