CALEFFI Z-one ZVR10 Series Manual page 33

DHW
X X
ZR/ZC
Maintenance and Repair: The Caleffi Z-one™ multi-zone valve relay comes with
a resettable fuse and requires no maintenance. If control fails or is damaged,
replace control with functional one.
The ZVR series of controls is programmed
by positioning a series of jumpers. Example
photo to right shows jumper in off position
(left photo) and on position (right photo).
Jumpers are used for the following
operations.
Priority ON / Priority OFF: When priority
jumper is ON, upon demand, zone 1 will
operate as priority and all other zones are
temporarily switched off (with 1 hour time-
out). When priority mode is OFF, any zones
PRIORITY SEC PUMP
PUMP
that were active when zone 1 was switched
L
L N
W C R W C
on will remain on.
T COM Status During Priority ON / Status During T T COM
Priority OFF: When status jumper is ON,
T-STAT 4
the system pump will continue to operate
during priority.
Master / Slave: allows for unlimited expansion
POWER IN
to additional ZVR relays.
L N
Boiler Connections
XX = Dry contacts rated up to 120 VAC, 2 Amps. Closes when any zone calls
including priority. Typically connected to TT on boiler control.
DHW (ZR/ZC) = Dry contacts rated up to 120 VAC, 2 Amps. Closes only
6 Zone
when priority is enabled and calling. Typically used to close ZR\ZC (120 VAC)
or DHW contacts (24 VAC) on boiler controls equipped with these features.
Communication connections
Connect terminals to matching terminal of
slave boards
W C R W C R W
D to D, P to P, Ground to Ground
T COM T T COM T T COM
OFF
Use 18 gauge thermostat wire. Wire
T-STAT 4 T-STAT 5
should be shielded if located in close proximity to high voltage wiring.
ZONE 2
END END
SWITCH MOTOR SWITCH MOTOR
DipSwitches
Master Slave
Priority OFF Priority ON
Primary ON
Primary OFF
R W C
T T COM
T-STAT 1
STATUS
DURING
PRIORITY
PRIORITY
ON OFF
POWER IN PRIORITY
ON
PUMP
L N
L N
SYSTEM
STATUS
PUMP ZONE 1
N
L N
DURING
R W C R W C
MOTOR
PRIORITY
T T COM T T COM
T-STAT 5 T-STAT 6
PRIORITY SEC PUMP SYSTEM
MASTER
PUMP
L N
L
L N
C R W C D P
COMMS
T T COM
T-STAT 6
ZONE 3 ZONE 4
END END
SWITCH MOTOR SWITCH
T-STAT 1 T-STAT 2
R W C R W
T T COM T T COM
Thermostat connections
T-STAT 2 T-STAT 3
X X
ZVR106
DHW
R
X X 6 Zone
ZR/ZC
T
T-STAT 1
STATUS
DURING
DHW
X X
PRIORITY
ZR/ZC
ZVR106
PRIORITY
ON OFF
Zone valve connections
6 Zone
SEC PUMP SYSTEM
OFF
PUMP
TRANSFORMER
L N L N
MOTOR
ZONE 2
END END
D P
SWITCH MOTOR SWITCH MOTOR
Input power
COMMS
PRIORITY
ON OFF POWER IN
L
ON OFF
TSAT1 ZONE1
POWER IN GROUNDS
L N
SLAVE
PUMP ZONE 1
Pump outputs TSAT2 ZONE2
N
END
MOTOR SWITCH
POWER IN PRIORITY
PUMP
TSAT3 ZONE3
L N
L
TSAT4 ZONE4
calls for heat except the priority zone when it is enabled.
PRIORITY PUMP = Runs when the priority zone calls. A jumper is required
TSAT5 ZONE5
between the END SWITCH terminals when using a pump for DHW.
PWR
TSAT6 ZONE6
ZONE1
ZONE 5 ZONE 6
END END
ZONE2
MOTOR SWITCH MOTOR SWITCH
ZONE3
T-STAT 3 T-STAT 4 T-STAT 5
C R W C R
MASTER
T T COM T
T-STAT 4 T-STAT 5
DHW
R W
ZVR106
ZR/ZC
T T COM
T-STAT 1
6 Zone
W C R W C R W
T COM T T COM T T COM
T-STAT 2 T-STAT 3
R W C R W
T T COM T T COM
T-STAT 1 T-STAT 2
ON OFF
TRANSFORMER
6 Zone
ZONE 1 ZONE 2 ZONE 3
END END
SWITCH SWITCH ZSR106
MOTOR MOTOR
ZONE 3 ZONE 4
END END
PWR
SWITCH MOTOR SWITCH
GROUNDS
N
PRIORITY
STATUS
PUMP 1 PUMP 2 PUMP 3
DURING
PRIORITY L N L
L N
ZONE 2 ZONE 3
ON OFF
END
MOTOR SWITCH
MOTOR
SEC PUMP SYSTEM
PUMP
L N
L N
N
WARNING: NEVER CONNECT R & C DIRECTLY, this will be a direct short on the 24
VAC supply.
WARNING: When connecting 2 or more Z-one controls, all controls must be powered
by the same 120 VAC circuit.
T-STAT 6 TSAT1 ZON
R
W C W C
SLAVE
MASTER SLAVE
TSAT2 ZON
T COM T T COM
R = 24 VAC. T-STAT 6
C W = Heat call R W C R W C R
TSAT3 ZON
T T COM T T COM T
C = Common of 24 VAC
T-STAT 2 T-STAT 3 T-STAT 4
Heat demand is initiated by closing R C R W C R W C
MASTER
T T COM T T COM
to W.
TSAT4 ZON
T-STAT 4 T-STAT 5
24 VAC is always present between R
& C.
C R W C R W C
TSAT5 ZON
T T COM T T COM
6 Zone
T-STAT 3 T-STAT 4
DipSwitches
Motor = 24 VAC to power the zone
TSAT6 ZON
ZSR106
Master Slave
valve motor
Priority ON
Priority OFF
ZONE 4 ZONE 5
Primary ON
Primary OFF
END END Exercise ON
Exercise OFF
End Switch = Connects to end switch
Post Purge ON SWITCH
SWITCH MOTOR Post Purge OFF SWITCH MOTOR
on zone valve. Must be jumpered if
ZONE 5 ZONE 6
using a 2 –wire zone valve.
ZVR106 END END
MOTOR SWITCH MOTOR SWITCH
6 Zone
L = Line (hot leg) of 120 VAC supply
PRIORITY
PUMP 1 PUMP 2 PUMP 3
N = Neutral of 120 VAC
L N L N
L N
= Ground
PUMP 4 PUMP 5 PUMP 6
N L N L N L
PRIORITY
ZONE 4
END END
ON OFF
SWITCH SWITCH MOTOR
MOTOR
SYSTEM PUMP = Runs when any
zone calls for heat. When priority is
ZONE 1 ZONE 2
enabled, the status of the pump (on\
END END
MOTOR SWITCH MOTOR SWITCH MOTOR
off) during a priority call is selected via
a jumper
SEC PUMP = Runs when any zone
T
D
T
W C R
T
T COM T
T
R W C
T
SLAVE
T T COM
T-STAT 6
T
R W C
Dip
T T COM
T
Mas
T-STAT 5
Priority O
Primary O
Exercise O
Post Purge O
ZONE
END
S
MOTOR
PUMP 4 P
L N L
N
ZONE 5
END
SWITC
ZONE 3
END
SWITCH M
25