Mitsubishi Electric PAC-TZ02-E User manual

ATW INDOOR UNIT OPTIONAL PARTS
2 ZONE KIT
PAC-TZ02-E
WARNING
●
●
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INSTALLATION MANUAL
If Cylinder unit (Hydrobox) has already been connected to the power supply, ensure circuit breaker is off before carrying out
electrical work.
If the 2 zone kit is installed incorrectly or modified after installation by the user, water may leak or 2 zone kit may fall from
Cylinder unit or wall.
All installation should be performed by a qualified technician according to local regulations and the instructions given in this
manual.
Connections must be made securely and without tension on the terminals.
CAUTION
●
●
●
●
●
●
●
●
●The 2 zone kit must be installed by 2 or more people.
All exposed water pipework should be insulated to prevent unnecessary heat loss and condensation.
To also use the 2 zone kit in Cooling mode, securely apply heat-insulation to draining pipework. If heat-insulation is
inadequate, condensation could occur on the surface of pipes and dew could drop on the floor or important goods.
To prevent dirty water from draining onto the floor next to Cylinder unit or under Hydrobox, please connect appropriate
discharge pipework from the 2 zone kit to its disposal location.
Secure 2 zone kit to prevent it from falling.
Do not hold piping or drain socket when moving the 2 zone kit.
Avoid the connection of piping or drain socket from damage. Otherwise, it may cause water leakage.
To prevent incorrect installation, please connect the flexible hose at the bend radius of 150 mm or more.
The water flow rate between the Cylinder unit (Hydrobox) and the 2 zone kit must be greater than the total flow rate of Zone1
and Zone2. Otherwise, Zone1 and Zone2 may not be heated properly.
● This 2 zone kit MUST be used with Cylinder unit or Hydrobox except for E*SE models.
●
Before starting installation, read the following description together with the installation manual included with the Cylinder unit (Hydrobox).
● Please read carefully and observe fully the following safety precautions.
Precaution that must be observed to prevent injuries or death.
WARNING
After installation, carry out a test run to ensure correct operation, then explain operation method and safety precautions to the
end user.
Tell your customers to keep this installation manual, and when they give or sell this machine to any other person include this
installation manual with it.
●
Incorrect handling could lead to injury or damage to house and household articles.
CAUTION
RG79F146H02
1

Contents
Outline
Note: This symbol mark is for EU countries only.
This symbol mark is according to the directive 2012/19/EU Article 14 Information for users and Annex IX, and/
or to the directive 2006/66/EC Article 20 Information for end-users and Annex II.
Your Mitsubishi Electric heating system products have been manufactured with high quality materials and components
which can be recycled and/or reused. The symbol in Figure 1.1 means that electrical and electronic equipment, batter-
ies and accumulators at the end of their life, should be disposed of separately from your household waste.
If a chemical symbol is printed beneath the symbol (Figure 1.1), this chemical symbol means that the battery or accu-
mulator contains a heavy metal at a certain concentration. This is indicated as follows;
Hg: mercury (0.0005%), Cd: cadmium (0.002%), Pb: lead (0.004%)
In the European Union there are separate collection systems for used electrical and electronic products, batteries and
accumulators.
Please dispose of this equipment, batteries and accumulators correctly at your local community waste collection/recy-
cling centre.
Contact your local Mitsubishi Electric dealer for country-specic details on disposal.
Please, help us to conserve the environment we live in.
<Figure 1.1>
Disposal of the Unit
2
Item Q'ty
2 zone kit 1
Flexible hose (520mm) 2
Conversion joint (Φ28 → G1) 2
Fixing plate 2
Gasket 4
Installation manual 1
Screw (M5×8) 2
Unit: mm
AFrom Cylinder unit (Hydrobox)
B To Cylinder unit (Hydrobox)
C From Zone1
D To Zone1
E From Zone2
F To Zone2
G1 connection
B
AC D
F E
Drain socket
(Size: Φ18.5)
BAC
D
F
E

105
80
min300
for service access
Component parts
Installation position
Water circuit and system fi gure
460 – 510430 – 580
2000 – 2100
1220 – 1270
Cylinder unit
(Hydrobox)
2 zone kit
<Zone1>
Radiator
<Zone2>
Floor heating
Pump3
THW6
THW7
THW8
Pump2
THW9
Air
vent
Air
vent
Mixing
valve
3
Unit: mm
Pump3 Pump2
Mixing valve
Thermistor
Manual air vent
<Cylinder unit> <Hydrobox>
Reactor box
Thermistor
Earth terminal

1 In the case of Cylinder unit
2 In the case of Cylinder unit
4
Tightening torque: 42N·m
Use double spanners.
Do not use the  exible hose below the bend radius of 150 mm.
After hand tighten the nut, tighten the joint 1 turn.
If necessary, tighten by another 1/4 of a turn.
Pipe cover
(Local supply)
Ensure that the 2 zone kit
does not touch the pressure
relief valve.
Remove the screw from
the 2 zone kit and reuse to
secure .

1. 2. 3.
1. 2.
1 In the case of Hydrobox
2 In the case of Hydrobox
Secure the back plate and
the unit with M5x8 screw.
5
● Ensure that the notch is positioned at the TOP of the back
plate. The back plate is provided with screw mounting
holes that are round or oval. To prevent the 2-zone kit
from falling o󰀨 the wall, choose the appropriate number of
holes or hole positions and horizontally secure the back
plate to the appropriate wall location.
Plugs
(Local supply)
Wall
Screws
(Local supply)
Back plate
(Horizontal)
<Side view>
1.5N·m
Back plate
5

3 In the case of Hydrobox
Drain piping
B
A
B A
B
A
6
NOTE
● Please use PVC pipe for drain piping.
● Use only compatible adhesive/glue for pipe joint.
● For proper drain-off, install pipework with gradient/fall of min. 1/100.
● Install pipe to fall continuously without bowing.
● Do not install any air purge points on condensate drain pipe run.
● Condensate drain pipe must discharge to suitable and safe outlet location. It should not be directly connected to any
sewer-connected pipework that may introduce sulphurous gases/smells to the building.
* “VP-20” is a PVC pipe with an outside diameter of 26 mm and an inside diameter of 20 mm.
Field supplied drain pipe
(VP-20A)* (Insulated)
Connect drain socket to field pipeworks
using suitable adhesive bond.
Connect the drain pipe only for Heating/Cooling models.
<Cylinder unit> <Hydrobox>
Field supplied drain pipe
(VP-20A)* (Insulated)
Connect drain socket to field
pipeworks using suitable
adhesive bond.
Pipe cover
(Local supply)
Tightening torque: 42N·m
Use double spanners.
Do not use the  exible hose below the bend radius of 150 mm.
After hand tighten the nut,
tighten the joint 1 turn.
If necessary, tighten by
another 1/4 of a turn.
Heating only model
Letter Pipe description
ASpace heating/Indirect DHW tank
(primary) return connection
BSpace heating/Indirect DHW tank
(primary)  ow connection
Heating only model
Heating and cooling model
<View from below>

Wiring
2
CN22
CN108
CN01
(BK)
1
3
CN3C
(BU)
CNPWM
(WH)
1
8
CN851
(BK)
1
5
CNRF
(WH)
CN105
(RD)
CNIT
(BU)
1
2
CN20
(RD)
TBI.1
LED3
LED4
TAB1
8
1
2
3
4
5
6
1
2
3
4
5
6
7
8
CNP1
(WH)
TBO.1 1
5
3
1
5
SW6
1
3
1
5
1
5
(BU)
1
LED2
1
SW1
8
1
SW2
8
1
SW3
1
SW4
6
8
1
SW5
LED1
1
3
1
3
CNP4
(RD)
TBO.2
1
2
3
4
5
6
TBO.3 CNV1
(WH)
1
3
5
1
2
3
4
5
6
7
8
TBO.4
CNIH
(OG)
1
3
CNBHT
(BK)
1
3
CNBC
(GY)
1
3
CNBH
(WH)
1
3
5
7
CN21
(YE)
1
3
CNW12
(RD)
1
4
CNW5
(BU)
1
4
1
4
CN1A
(WH)
68 7 543 21
TBI.2
68 7 543 21
TBI.3
68 7 543 21
TBI.4
68 7 543 21
TBI.5
68 7 543 21 68 7 54 3 21
TBI.6
1
4
CN401
(WH)
2
CN22
CN108
CN01
(BK)
1
3
CN3C
(BU)
CNPWM
(WH)
1
8
CN851
(BK)
1
5
CNRF
(WH)
CN105
(RD)
CNIT
(BU)
1
2
CN20
(RD)
TBI.1
LED3
LED4
TAB1
8
1
2
3
4
5
6
1
2
3
4
5
6
7
8
CNP1
(WH)
TBO.1 1
5
3
1
5
SW6
1
3
1
5
1
5
(BU)
1
LED2
1
SW1
8
1
SW2
8
1
SW3
1
SW4
6
8
1
SW5
LED1
1
3
1
3
CNP4
(RD)
TBO.2
1
2
3
4
5
6
TBO.3 CNV1
(WH)
1
3
5
1
2
3
4
5
6
7
8
TBO.4
CNIH
(OG)
1
3
CNBHT
(BK)
1
3
CNBC
(GY)
1
3
CNBH
(WH)
1
3
5
7
CN21
(YE)
1
3
CNW12
(RD)
1
4
CNW5
(BU)
1
4
1
4
CN1A
(WH)
68 7 54 3 21
TBI.2
68 7 54 3 21
TBI.3
68 7 54 3 21
TBI.4
68 7 54 3 21
TBI.5
68 7 54 3 21 68 7 543 21
TBI.6
1
4
CN401
(WH)
7
2
CN22
CN108
CN01
(BK)
1
3
CN3C
(BU)
CNPWM
(WH)
1
8
CN851
(BK)
1
5
CNRF
(WH)
CN105
(RD)
CNIT
(BU)
1
2
CN20
(RD)
TBI.1
LED3
LED4
TAB1
8
1
2
3
4
5
6
1
2
3
4
5
6
7
8
CNP1
(WH)
TBO.1 1
5
3
1
5
SW6
1
3
1
5
1
5
(BU)
1
LED2
1
SW1
8
1
SW2
8
1
SW3
1
SW4
6
8
1
SW5
LED1
1
3
1
3
CNP4
(RD)
TBO.2
1
2
3
4
5
6
TBO.3 CNV1
(WH)
1
3
5
1
2
3
4
5
6
7
8
TBO.4
CNIH
(OG)
1
3
CNBHT
(BK)
1
3
CNBC
(GY)
1
3
CNBH
(WH)
1
3
5
7
CN21
(YE)
1
3
CNW12
(RD)
1
4
CNW5
(BU)
1
4
1
4
CN1A
(WH)
68 7 54 3 21
TBI.2
68 7 54 3 21
TBI.3
68 7 54 3 21
TBI.4
68 7 54 3 21
TBI.5
68 7 54 3 21 68 7 54 3 21
TBI.6
1
4
CN401
(WH)
TBO.1
TBO.2
1
Pump 2
Pump 3
Mixing
valve
2
3
4
5
6
1
2
3
4
5
6
M
1~
M
1~
M
1~
Brown
Blue
Black
Brown
Blue
Brown
Blue
SW2
OFF ON
1
8
TBI.5
1
47 56 2 83
THW6
Gray
THW7
Black
THW8
Red
THW9
Blue
<Cylinder unit> <Hydrobox>
THW6/7/8/9
THW6/7/8/9
Pump/Mixing valve/
Earth
Pump/Mixing valve/
Earth terminal
1
2
T
B
O
.1
THW6/7/8/9
THW6/7/8/9
Pump/Mixing valve/Earth
Earth terminal
CN
01
(
B
K
)
1
3
C
N
3C
(
B
U
)
1
2
C
N
P
1
T
B
O
.1
1
5
3
1
Earth
terminal
Pump/
Mixing valve/
Earth
THW6/7/8/9
Earth
terminal
THW6/7/8/9
terminal

Green LED
Yellow LED
8
DIP Switch settings of Cylinder unit (Hydrobox)
Setting the following DIP switches are necessary for 2 zone control. (See the installation manual of Cylinder unit (Hydrobox)
for more information.)
If you press the button for more than 10 seconds, you can toggle between enabling/disabling the key lock function.
DIP switch Function OFF ON Setting when using 2 zone kit
SW2-6 Mixing tank WITHOUT Mixing tank WITH Mixing tank ON
SW2-7 2-zone temperature control Inactive Active * ON
* Active only when SW3-6 is set to OFF.
Specications
Pump performance view
Pump key lock function
Model name PAC-TZ02-E
Dimension 265mm × 383mm × 383mm
Weight 17kg
Power supply 230V/single phase/50Hz from Cylinder unit (Hydrobox)
Sound pressure level 28dB(A)
Sound power level 40dB(A)
Pump2, 3 Max. 52W/0.52A
Max. head 7.0m *1
Mixing valve 5W
Running time 90° 120s
Water ow rate range Depend on outdoor unit
Note:
● Max. ow rate is 36.9L/min. If the ow rate exceeds 36.9L/min, pipes would be eroded.
●
The water ow rate between the Cylinder unit (Hydrobox) and the 2 zone kit must be greater than the total ow rate of Zone1
and Zone2.
Display Performance in % of MAX consumption
One green LED 0
One green LED
+
one yellow LED 0-25
One green LED
+
two yellow LED 25-50
One green LED
+
three yellow LED 50-75
One green LED
+
four yellow LED 75-100

9
Pump setting selection
PP: Proportional Pressure
You can check the setting by pressing the push button.
If you press the button for 2 to 10 seconds, the user interface switches to “setting selection” if the user interface is unlocked.
You can change the settings as below table.
The head (pressure) is reduced at falling heat demand and increased at rising heat demand.
PP1: lowest proportional pressure curve
PP2: intermediate proportional pressure curve
PP3: highest proportional pressure curve
PP Auto Adapt: highest to lowest proportional pressure curve
The Auto Adapt function enables the circulator to adjust the pump performance
automatically to the size of the system or the variations in load over time.
Mode LED1
green LED2 yellow LED3 yellow LED4 yellow LED5 yellow
PP1 ● ●
PP2 ● ● ●
PP3 ● ● ● ●
PP AA ● ● ●
CP1 ● ●
CP2 ● ● ●
CP3 ● ● ● ●
CP AA ●●●
CC1 ●●●
CC2 ●●●●
CC3 ●●●●●
CC max. ● ● ● ●
0
10
20
30
40
50
60
70
80
0 01 02 04 05 60
External static pressure [kPa]
30
Flow rate [L/min]
PP1
PP2
PP3
<Proportional Pressure>

10
CP: Constant Pressure
CC: Constant Curve
The head (pressure) is kept constant, irrespective of the heat demand.
CP1: lowest constant pressure curve
CP2: intermediate constant pressure curve
CP3: highest constant pressure curve
CP Auto Adapt: highest to lowest constant pressure curve
The Auto Adapt function enables the circulator to adjust the pump performance
automatically to the size of the system or the variations in load over time.
The circulator runs on a constant curve.
<Constant Pressure>
CP1
CP2
CP3
0 01 02 04 05 706030
Flow rate [L/min]
0
10
20
30
40
50
60
70
80
External static pressure [kPa]
0
10
20
30
40
50
60
70
80
0 01 02 04 05 60
External static pressure [kPa]
30
Flow rate [L/min]
CC3
CC2
CC max.
CC1
<Constant Curve>

11

HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Printed in the UNITED KINGDOM
Please be sure to put the contact address/telephone number on
this manual before handing it to the customer.