Rehau DELUXE Instructions

Construction
Automotive
Industry
INSTRUCTIONS FOR DELUXE ZONE VALVE CONTROL
ARTICLE NO. 281711-001
WHITE
A
120 VAC
24 VAC
INPUT
BLACK
WHITE
120 VAC B
24 VAC
INPUT
BLACK
Optional System and/or
DHW and/or Secondary
Circulators
PUMP END ZONE 4 PUMP
SWITCH END SWITCH
X X
N/O COM N/C
HOT
120
SYSTEM
VAC
PUMP
DHW
PUMP
NEUTRAL
SYSTEM PUMP AND BOILER TURN ON WHEN ANY ZONE VALVE OPENS.
DHW PUMP TURNS ON ONLY WHEN PRIORITY ZONE CALLS.
SECONDARY PUMP COMES ON WHEN ANY ZONE CALLS EXCEPT PRIORITY ZONE.

Operation/External Diagnostics:

When any thermostat calls for heat, the ap-
propriate zone valve is energized and the yellow light goes on. When the zone valve
is fully open, the red light goes on and energizes the end switch relay. The green
light should always be on, indicating that power is connected.

Priority Operation:

When the priority dip switch is set to ON and the priority zone
is actuated, all other zones will stop operation until priority zone is satisfied. When
not switched to priority, all zones will operate independently.

Mode Operation:

When the dip switch is set to NORMAL, the end switch relay will
be energized if any zone is in operation. When the switch is set to RESET, the end
switch relay will only be energized if the priority zone is in operation, or through the
operation of a plug-in reset control.
Post Purge Operation: When the dip switch is set to ON, the priority zone output
will stay energized for 2 minutes after its thermostat or aquastat is satisfied, but it
will not operate the boiler.
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The information contained herein is believed to be reliable, but no representations, guarantees or warranties of any kind are made as to its accuracy, suitability for particular applications or the results to be obtained therefrom.
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Fully fuse protected and with two 40VA transformers, this junction box is feature rich with a priority switch for four
zones, two end switches for pump or boiler operations and a master/slave switch allowing for the ganging together
of multiple boxes for control of up to 20 zones. An extra set of dry contacts is also included. Two power port ter-
minals are available and can be used with add-on power controls which can add additional features, such as post
purge, priority protection and universal timer/pump exercise. Pump relay not included.
TO: "TT" ON BOILER WITH
DHW "TT" INPUT
TO: "TT" ON BOILER
POWER
CONTROLS
FUSE
5 AMP
FUSE
5 AMP
ACCESSORY
PORT
PRIORITY PROTECTION ON
PUMP EXERCISE ON
PUMP END ZONE 4 PUMP
SWITCH END SWITCH
X X N/O COM N/C
TO
CIRCULATOR
DRY
CONTACTS
MUST USE JUMPER
SECONDARY
PUMP
WIRING DIAGRAM
Powered from Transformer A
THERMOSTATS (24 VAC)
X X X X A B C R W C R W C R W C R W C 1 2
ZONE 1 ZONE 2 ZONE 3 ZONE 4 NET
MAIN PRIORITY EXPANSION
END SWITCH THERMOSTATS (24 VAC)PRIORITY
SLAVE MASTER
FOUR ZONE EXPANDABLE
PRIORITY ON OFF
ZONE VALVE CONTROL
RESET NORMAL
POST PURGE ON OFF
OFF
OFF
30 SEC/2 WK 4 MIN/24 HOUR
24 VAC ZONE VALVES
ZONE 1 ZONE 2
1 2 3 4 1 2 3 4
JUMPER
3 & 4
1
2
3
2 WIRE
4 WIRE
ZONE VALVE
ZONE VALVE
TACO
(NO END SWITCH)
(POWER OPEN,
3 WIRE
SELF CLOSING)
ZONE VALVE
Powered from Transformer A
Priority Protection Operation:
priority zone calls continuously for more than one hour, power is returned to all the
other zones, allowing each zone to function independently. Once the priority zone is
satisfied, the control's auto-reset is activated and the priority zone is again allowed
to have priority for up to one hour starting from when it calls next.
Pump Exercise Operation:
cycles all zone valves and circulating pumps attached to the Expandable Zone
Valve Control at the selected time interval. The time interval can be set for to run
for either 30 seconds every 2 weeks or for 4 minutes every 24 hours.
End Switches (Dry Contacts):
thermostat calls for heat and the mode switch is set to NORMAL. The main end
switch also closes when the mode switch is set to reset and a PC Series boiler
reset power control is calling for heat. The priority end switch closes only when the
priority zone thermostat or aquastat is calling for heat.
Powered from Transformer B
ZVC 404-EXP-4
INDICATORS
POWER
T STAT 1
T STAT 2
T STAT 3
T STAT 4
PRIORITY
ZONE 3 ZONE 4
1 2 3 4 1 2 3 4
JUMPER
3 & 4
SEE NOTE
PRIORITY
ZONE
MOTOR END
SWITCH
NOTE: When a circulator is used
on the priority zone instead of a
zone valve, jumper 3 and 4 of
the priority zone.
Powered from Transformer B
When the dip switch is set to ON, and if the
When the dip switch is set to ON, the solid state timer
The main end switch closes when any zone
INDIRECT
WATER HEATER
AQUASTAT OR
THERMOSTAT
LED
VALVE 1
VALVE 2
VALVE 3
VALVE 4
© 2012 REHAU
855.626 09.12