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Idiomas disponibles
Idiomas disponibles
GRUNDFOS ZONE CONTROL INSTRUCTIONS
Description:
The Grundfos Zone Control family are non-networked devices intended to be
used for circulator and boiler control in hydronic heating systems.
Maximum
Part
Model
Number
Number
of Zones
UPZC-1
96741787
Warning:
Electrical shock and potential circuit damage. Disconnect power supply before beginning
installation. All wiring must comply with national and local electrical codes, ordinances and regulations.
Failure to follow electrical codes could result in serious personal injury, death, and property damages.
Caution:
Wire all circuits as Class 1, Electric Light or Power Circuits.
Wiring Connections:
> All electrical connections must be made using copper wire only
> 12-16 AWG wire is recommended for 120VAC connections
> 12-22 AWG wire for thermostat connections
Additional wiring schematics, specs, and trouble shooting help can be found on our WEB link: www.grundfos.us/controls
Optional 3-wire
Thermostat
Optional 3-wire
Thermostat
Class 2
wiring
R
W
24 AC
COM
T
T
COM
5
Class 2
wiring
R
W
24 AC
COM
T
T
COM
5
Neutral
Line
COM
L2
L1
3
Class 1
wiring
Neutral
COM
Line
L2
L1
3
Class 1
wiring
120 VAC
Factory Installed
Power
Jumper
120 VAC
Factory Installed
Power
Jumper
Cold Start Boiler Installation:
> Do not remove factory installed jumper between L1 & COM3
> Attach low voltage thermostat leads to respective thermostat
terminals RT & WT, if thermostat requires voltage use 24AC COM
terminal
> Attach circulator leads to terminals (L2 & NO4)
> Connect isolation end switch (terminals COM5 & NO6) to TT
terminals on boiler
> Connect supply voltage to terminals (L1 & L2)
External Diagnostics:
> Green LED indicates presence of 24VAC at secondary side of transformer.
> Yellow LED indicates a thermostat(s) call for heat
Agency Listings:
USL UL 873 Temperature Indicating and Regulating Equipment
CNL CAN/CSA C22.2 No. 24.
Warranty:
3 years
Input
Relay
Power
Type
60 HZ
Thermostat
120 VAC
1
DPDT
+/- 10%
TT
Connections
(Dry Contacts)
TT
Connections
Boiler
(Dry Contacts)
Boiler
NO
NC
6
6
NO
NC
6
6
NO
NC
4
4
NO
NC
4
4
Circulator
Circulator
Current
Transformer
Output to
Motor Rating Per
Voltage
Zone @ 120VAC
120V AC,
0.13A
1/3 HP, 10 A GP
24V, 15VA
> 12-22 AWG wire for 24VAC connections
> Use approved UL conduit fittings
Class 2
wiring
R
W
24 AC
T
T
Class 2
wiring
R
W
24 AC
T
T
Neutral
Class 1
wiring
Neutral
Class 1
wiring
Factory Installed
Jumper
Factory Installed
Jumper
Tankless Coil Boiler Installation:
> Do not remove factory installed jumper between L1 & COM3
> Attach low voltage thermostat leads to respective thermostat
terminals RT & WT, if thermostat requires voltage use 24AC COM
terminal
> Attach circulator leads to terminals (L2 & NO4)
> Connect terminals COM5 & NO6 to Dry Contacts ZR & ZC
> Connect supply voltage to terminals (L1 & L2)
Single phase
Maximum
Combined
Load
10A
Dry Contacts
Optional 3-wire
ZR & ZC
Thermostat
Dry Contacts
ZR & ZC
Optional 3-wire
Thermostat
COM
NO
NC
COM
5
6
6
COM
NO
NC
COM
5
6
6
Line
COM
NO
NC
L2
L1
3
4
4
Line
COM
NO
NC
L2
L1
3
4
4
120 VAC
Power
Circulator
120 VAC
Power
Circulator
Min/Max
Ambient
Temperature
32°F (0°C)
104°F (40°C)
Boiler
Boiler
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