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Idiomas disponibles
Idiomas disponibles
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 of
Number
Zones
UPZC-3
96741788
UPZC-4/6
96741789
4 to 6
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
PRIORITY
O
O
T
T1
T1
T2
F
N
M
R
C
R1
W1
R2
F
R
120
120
ZR
L
N
L
N
VAC
ZC
VAC
N
CP
L1
X1
X2
P1
P2
C1
C1
Class 1
wiring
"TT"
Connections
120 VAC
Power
Factory
Boiler
Installed
Jumper
Cold Start Boiler Installation:
> Do not remove factory installed jumper between ZCCP & L1
> Attach low voltage thermostat leads to respective thermostat
terminals T1R1 & T1W1, if thermostat requires voltage use 24AC
C terminal
> Attach circulator leads to respective terminals (LC1 & NC1)
> Connect isolation end switch (terminals X1 & ZRX2) to TT
terminals on boiler aquastat
> Select priority switch setting
> Connect supply voltage to terminals (N & L1)
Optional 3-wire
Thermostat
PRIORITY
Priority Switch Settings:
120
120
ZC
VAC
VAC
External Diagnostics:
> Green LED indicates presence of 24VAC at secondary side of transformer.
N
CP
L1
> Yellow LED indicates a thermostat(s) call for heat
> Red LED indicates Zone 1 priority is active
Agency Listings:
USL UL 873 Temperature Indicating and Regulating Equipment
CNL CAN/CSA C22.2 No. 24.
120 VAC
Power
Warranty:
3 years
Factory
Input
Relay
Power
Type
60 HZ
Thermostat
3
120 VAC
DPDT
+/- 10%
Class 2
wiring
T2
T3
T3
T4
T4
T5
T5
T6
W2
R3
W3
R4
W4
R5
W5
R6
L
N
L
N
L
N
L
N
L
C2
C2
C3
C3
C4
C4
C5
C5
C6
Expandable
UPZC-4/6
UPZC-3
OFF Position:
No set priority, all zones operate independently
ON Position:
Zone 1 has priority until the demand is satisfied
O
O
T
TMR Position:
Zone 1 has priority for 1-Hour. The remaining zones will stop operation
T1
T1
T2
N
R
F
M
C
until Zone 1 is satisfied or until the 1-Hour priority has expired.
R1
W1
R2
F
R
L
N
L
N
ZR
P1
P2
C1
C1
X1
X2
Class 1
wiring
"TT"
Connections
Boiler
Current
Single phase
Transformer
Output to
Motor Rating Per
Voltage
Zone @ 120VAC
120V AC,
0.13A
1/3 HP, 10 A GP
24V, 25VA
> 12-22 AWG wire for 24VAC connections
> Use approved UL conduit fittings
Optional 3-wire
Thermostat
PRIORITY
O
O
T
T1
T6
F
N
M
R
C
R1
W6
F
R
120
120
N
ZR
L
N
VAC
ZC
VAC
C6
N
CP
L1
X1
X2
P1
P2
"ZR & ZC"
Connections
120 VAC
Power
Factory
Boiler
Jumper must
be moved to
this position
Tankless Coil Boiler Installation:
> Move factory installed jumper to terminals L1 & X1
> Attach low voltage thermostat leads to respective thermostat
terminals T1 R1 & T1 W1, if thermostat requires voltage use 24AC
C terminal
> Attach circulator leads to respective terminals (LC1 & NC1)
> Connect terminals ZCCP & ZRX2 to boiler aquastat ZR & ZC
> Select priority switch setting
> Connect supply voltage to terminals (N & L1)
Class 2
wiring
T2
T3
T3
T4
T4
W2
R3
W3
R4
W4
L
N
L
N
L
N
C2
C2
C3
C3
C4
C4
Maximum
Min/Max
Combined
Ambient
Load
Temperature
32°F (0°C)
30A
104°F (40°C)
Class 2
wiring
T1
T2
T2
T3
T3
T4
T4
T5
W1
R2
W2
R3
W3
R4
W4
R5
L
N
L
N
L
N
L
L
N
C2
C2
C3
C3
C4
C4
C5
C1
C1
Class 1
wiring
Expandable
UPZC-3
UPZC-4/6
T5
T5
T6
T6
R5
W5
R6
W6
L
N
L
N
C5
C5
C6
C6
Expandable
T5
T6
T6
W5
R6
W6
N
L
N
C5
C6
C6
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