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5
System Set Up
5.3 Wiring for 2-zone temperature control
Connect the pipe work and locally supplied parts according to the relevant circuit
diagram shown in "Local system" in Section 3, of this manual.
<Mixing valve>
• Zone1
Connect the signal line to open Port A (hot water inlet port) to TBO. 2-6 (Open),
the signal line to open Port B (cold water inlet port) to TBO. 2-4 (Close) , and the
neutral terminal wire to TBO. 2-5 (N).
Zone2
Connect the signal line to open Port A (hot water inlet port) to TBO. 2-3 (Open),
the signal line to open Port B (cold water inlet port) to TBO. 2-1 (Close) , and the
neutral terminal wire to TBO. 2-2 (N).
<Thermistor>
• Do not install the thermistors on the mixing tank.
• Install the thermistor (Zone 1 flow water temp.) (THW6) near the mixing valve.
• Install the thermistor (zone 2 flow water temp.) (THW8) near the mixing valve.
• The maximum length of the thermistor wiring is 30 m.
• The length of the optional thermistors are 5 m. If you need to splice and extend
the wirings, following points must be carried out.
1) Connect the wirings by soldering.
2) Insulate each connecting point against dust and water.
DIP Switch settings of cylinder unit (hydrobox)
Setting the following DIP switches are necessary for 2-zone control.
DIP switch
Function
SW2-6
Mixing tank
SW2-7
2-zone temperature control
SW7-1
Mixing valve setting
* Active only when SW3-6 is set to OFF.
Specifications
Model name
Dimension
Weight
Power supply
Sound pressure level
Sound power level
Pump 2, 3
Mixing valve
Water flow rate range
Note:
● Max. flow rate is 36.9 L/min. If the flow rate exceeds 36.9L/min, pipes would be eroded.
● The water flow rate between the cylinder unit (hydrobox) and the 2-zone kit must be greater than the total flow rate of Zone 1 and Zone 2.
Pump performance view
Display
One green LED
Two green LED
Two green LED
+
one yellow LED
Two green LED
+
two yellow LED
Two green LED
+
three yellow LED
Pump key lock function
If you press the push button for more than 10 seconds, you can toggle between enabling/disabling the key lock function.
OFF
WITHOUT Mixing tank
Inactive
Only Zone2
PAC-TZ02-E2
265 mm × 383 mm × 383 mm
17 kg
230 V/single phase/50 Hz from cylinder unit (hydrobox)
28 dB(A)
40 dB(A)
Max. 52 W/0.52 A
Max. head 7.0 m
5 W
Running time 90° 120s
Depend on outdoor unit
Performance in % of MAX consumption
0
0-25
25-50
50-75
75-100
N
L
FTC
Close
N Open Close N Open
Zone2
ON
WITH Mixing tank
Active *
Zone1 and Zone2
*1
Push button
N
L
from mixing
tank
A
B
to mixing tank
Zone1
Setting when using 2-zone kit
ON
ON
OFF
Yellow LED
Green LED
to Zone
heat emitter
Motorized
mixing valve
from Zone
heat emitter
en
22
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