Viega... The global leader in plumbing, heating and pipe joining systems
301 N. Main, 9th Floor • Wichita, KS 67202 • Ph: 800-976-9819 • Fax: 316-425-7618 • www.viega.com
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PI-PR-520949 0212 (Pump and Boiler Relay)
Product
Instructio
ns
2 of 3
LED
INDICATORS
POWER
ONE ZONE
SWITCHING RELAY
C
24 v
COM
R W
T
T
N H 3 4 4
6
ZONE 1
INPUT
120 VAC
N/O
N/O
N/C
N/C
TO: 120 VAC POWER
CIRCULATOR
TO: TT ON BOILER
6 5
COM
COM
JUMPER
FUSE
6 AMP
FUSE
6 AMP
Thermostats
18031
18029
L
N
3-WIRE
THERMOSTAT
Viega 3 wire Thermostat (stock code 18031, 18029)
Connecting the Pump and Boiler Relay to a
Viega Thermostat
Terminal Identification:
TT
Zone Control or thermostat connection
24v COM Common side of 24V transformer, for 3-wire thermostats
N
Neutral wire of power input (120 V)
H
Hot wire of power input (120 V)
3
Common terminal for 4 n/o and 4 n/c
4 n/o
Normally open terminal
4 n/c
Normally closed terminal
6 n/o
Normally open terminal
6 n/c
Normally closed terminal
5
Common terminal for 6 n/o and 6 n/c
Viega Digital Thermostat (stock code 18050)
Connecting the Pump and Boiler Relay to a
Viega Thermostat
LED
INDICATORS
POWER
ONE ZONE
SWITCHING RELAY
C
24 v
COM
R W
T
T
N H 3 4 4
6
ZONE 1
INPUT
120 VAC
N/O
N/O
N/C
N/C
TO: 120 VAC POWER
CIRCULATOR
TO: TT ON BOILER
6 5
COM
COM
JUMPER
FUSE
6 AMP
FUSE
6 AMP
3-WIRE
THERMOSTAT
Thermostats
18050
R
C
W
Wiring Diagram #1
Wiring Diagram #2
