25
SYSTEM PUMP = Runs when any
zone calls for heat. When priority is
enabled, the status of the pump (on\
off) during a priority call is selected via
a jumper
SEC PUMP = Runs when any zone
calls for heat except the priority zone when it is enabled.
PRIORITY PUMP = Runs when the priority zone calls. A jumper is required
between the END SWITCH terminals when using a pump for DHW.
6 Zone
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
L
PUMP 2
N
PRIMARY
PUMP
L
PRIORITY
PUMP 1
N
L
POWER IN
N
GROUNDS
L
PUMP 3
N
TRANSFORMER
L
N
T-STAT 4
C
R
W
T
T COM
L
PUMP 4
N
L
PUMP 5
N
L
PUMP 6
N
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
PWR
ZONE1
ZONE2
ZONE3
ZONE4
ZONE5
ZONE6
DipSwitches
Master
Slave
Priority OFF
Priority ON
Primary OFF
Primary ON
Exercise OFF
Exercise ON
Post Purge OFF
Post Purge ON
ZSR106
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
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.
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
that were active when zone 1 was switched
on will remain on.
Status During Priority ON / Status During
Priority OFF:
When status jumper is ON,
the system pump will continue to operate
during priority.
Master / Slave:
allows for unlimited expansion
to additional ZVR relays.
6 Zone
ZVR106
L
POWER IN
N
PWR
TSAT1 ZONE1
TSAT2 ZONE2
TSAT3 ZONE3
TSAT4 ZONE4
TSAT5 ZONE5
TSAT6 ZONE6
L
PRIORITY
PUMP
N
L
SEC PUMP
N
STATUS
DURING
PRIORITY
ZONE 1
END
SWITCH
MOTOR
PRIORITY
ZONE 2
END
SWITCH
MOTOR
ZONE 3
END
SWITCH
MOTOR
ZONE 4
END
SWITCH
MOTOR
ZONE 5
END
SWITCH
MOTOR
ZONE 6
END
SWITCH
MOTOR
ON OFF
ON OFF
L
SYSTEM
PUMP
N
MASTER SLAVE
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
T-STAT 4
C
R
W
T
T COM
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
6 Zone
ZVR106
L
POWER IN
N
PWR
TSAT1 ZONE1
TSAT2 ZONE2
TSAT3 ZONE3
TSAT4 ZONE4
TSAT5 ZONE5
TSAT6 ZONE6
L
PRIORITY
PUMP
N
L
SEC PUMP
N
STATUS
DURING
PRIORITY
ZONE 1
END
SWITCH
MOTOR
PRIORITY
ZONE 2
END
SWITCH
MOTOR
ZONE 3
END
SWITCH
MOTOR
ZONE 4
END
SWITCH
MOTOR
ZONE 5
END
SWITCH
MOTOR
ZONE 6
END
SWITCH
MOTOR
ON OFF
ON OFF
L
SYSTEM
PUMP
N
MASTER SLAVE
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
T-STAT 4
C
R
W
T
T COM
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
6 Zone
ZVR106
L
POWER IN
N
PWR
TSAT1 ZONE1
TSAT2 ZONE2
TSAT3 ZONE3
TSAT4 ZONE4
TSAT5 ZONE5
TSAT6 ZONE6
L
PRIORITY
PUMP
N
L
SEC PUMP
N
STATUS
DURING
PRIORITY
ZONE 1
END
SWITCH
MOTOR
PRIORITY
ZONE 2
END
SWITCH
MOTOR
ZONE 3
END
SWITCH
MOTOR
ZONE 4
END
SWITCH
MOTOR
ZONE 5
END
SWITCH
MOTOR
ZONE 6
END
SWITCH
MOTOR
ON OFF
ON OFF
L
SYSTEM
PUMP
N
MASTER SLAVE
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
T-STAT 4
C
R
W
T
T COM
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
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.
R = 24 VAC.
W = Heat call
C = Common of 24 VAC
Heat demand is initiated by closing R
to W.
24 VAC is always present between R
& C.
Thermostat connections
6 Zone
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
L
PUMP 2
N
PRIMARY
PUMP
L
PRIORITY
PUMP 1
N
L
POWER IN
N
GROUNDS
L
PUMP 3
N
TRANSFORMER
L
N
T-STAT 4
C
R
W
T
T COM
L
PUMP 4
N
L
PUMP 5
N
L
PUMP 6
N
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
PWR
ZONE1
ZONE2
ZONE3
ZONE4
ZONE5
ZONE6
DipSwitches
Master
Slave
Priority OFF
Priority ON
Primary OFF
Primary ON
Exercise OFF
Exercise ON
Post Purge OFF
Post Purge ON
ZSR106
Connect terminals to matching terminal of
slave boards
D to D, P to P, Ground to Ground
Use 18 gauge thermostat wire. Wire
should be shielded if located in close proximity to high voltage wiring.
Communication connections
6 Zone
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
L
PUMP 2
N
PRIMARY
PUMP
L
PRIORITY
PUMP 1
N
L
POWER IN
N
GROUNDS
L
PUMP 3
N
TRANSFORMER
L
N
T-STAT 4
C
R
W
T
T COM
L
PUMP 4
N
L
PUMP 5
N
L
PUMP 6
N
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
PWR
ZONE1
ZONE2
ZONE3
ZONE4
ZONE5
ZONE6
DipSwitches
Master
Slave
Priority OFF
Priority ON
Primary OFF
Primary ON
Exercise OFF
Exercise ON
Post Purge OFF
Post Purge ON
ZSR106
L = Line (hot leg) of 120 VAC supply
N = Neutral of 120 VAC
= Ground
Input power
Pump outputs
6 Zone
ZVR106
L
POWER IN
N
PWR
TSAT1 ZONE1
TSAT2 ZONE2
TSAT3 ZONE3
TSAT4 ZONE4
TSAT5 ZONE5
TSAT6 ZONE6
L
PRIORITY
PUMP
N
L
SEC PUMP
N
STATUS
DURING
PRIORITY
ZONE 1
END
SWITCH
MOTOR
PRIORITY
ZONE 2
END
SWITCH
MOTOR
ZONE 3
END
SWITCH
MOTOR
ZONE 4
END
SWITCH
MOTOR
ZONE 5
END
SWITCH
MOTOR
ZONE 6
END
SWITCH
MOTOR
ON OFF
ON OFF
L
SYSTEM
PUMP
N
MASTER SLAVE
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
T-STAT 4
C
R
W
T
T COM
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
6 Zone
ZVR106
L
POWER IN
N
PWR
TSAT1 ZONE1
TSAT2 ZONE2
TSAT3 ZONE3
TSAT4 ZONE4
TSAT5 ZONE5
TSAT6 ZONE6
L
PRIORITY
PUMP
N
L
SEC PUMP
N
STATUS
DURING
PRIORITY
ZONE 1
END
SWITCH
MOTOR
PRIORITY
ZONE 2
END
SWITCH
MOTOR
ZONE 3
END
SWITCH
MOTOR
ZONE 4
END
SWITCH
MOTOR
ZONE 5
END
SWITCH
MOTOR
ZONE 6
END
SWITCH
MOTOR
ON OFF
ON OFF
L
SYSTEM
PUMP
N
MASTER SLAVE
T-STAT 2
C
R
W
T
T COM
COMMS
D
P
DHW
ZR/ZC
X X
T-STAT 3
C
R
W
T
T COM
T-STAT 1
C
R
W
T
T COM
T-STAT 4
C
R
W
T
T COM
T-STAT 5
C
R
W
T
T COM
T-STAT 6
C
R
W
T
T COM
Motor = 24 VAC to power the zone
valve motor
End Switch = Connects to end switch
on zone valve. Must be jumpered if
using a 2 –wire zone valve.
Zone valve connections
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.
