Panasonic PAW-160MAH2L Bedienungsanleitung
Air Handling Unit Kit 5,00-25,00kW for PACi.
Compatible with R32 or R410A outdoor units
Panasonic AHU Kit, 5,00-25,00kW connected to PACi outdoor unit
The Air Handling Unit Kit has been developed to better meet customer
demand: IP 65 Box in order to be installed outside, 0-10V demand
control* and easy control by BMS
* Only available with PACi Elite, from 5kW to 25kW.
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External BMS
0 – 10V Capacity control
Air Handling Unit (AHU)
PACi or ECOi/ECO G outdoor unit
Demand control on the outdoor unit managed by external 0–10 V signal.
AHU control kit
Main components of mechanical ventilation systems
The main components of a mechanical ventilation system are the
following: Air Handling Unit (AHU), air ducts and air distribution elements.
Exhaust air Outside air
Return air
Supply air
0-10V control
With the 0-10 v demand control the capacity of the outdoor unit can be
controlled by 20 steps.
Input Voltage* (V) 0 1,0 1,5 2,0 2,5 3,0 3,5 4,0 4,5 5,0 5,5 6,0 6,5 7,0 7,5 8,0 8,5 9,0 9,5
Demand (% of
nominal current) No cut 1) 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 No limit /
Full capacity 2)
Indoor unit
start / stop Stop 1) Start
1) No cut/Stop: AHU system / indoor unit is completely switched OFF.
2) No Limit: No restrictions applied by BMS to AHU system / indoor unit performance (equivalent to “full-load operation“ of AHU
system / indoor unit).
Control option 1: PAW-280PAH2L
· The system’s control is simple: control of actual suction temperature vs. set point
· Control works in the same way as that of any indoor unit
· Fan signal issued by the PCB (OFF while defrosting, for instance)
Control option 2: PAW-280PAH2
· System control by probe located at air intake. Sensor works as a 0–10V control thermostat which manages the set
point temperature. Control to prevent cold draughts.
· All signals as per standard
Control option 3: PAW-280PAH2
· System control by external environment probe. Sensor works as a 0–10V control thermostat which manages the
set point temperature. Enhances efficiency by adjusting capacity to the ambient temperature and enhances
comfort as well.
· All signals as per standard
Control option 4: PAW-280PAH2
· System control by a 0–10V control working from an external BMS that manages the set point for the temperature or
the capacity. Enhances efficiency by adjusting capacity and enhances comfort as well.
· All signals as per standard
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3 types of AHU Kit: Deluxe, Medium and Light.
Model Code IP 65 0-10V demand
control*
Outdoor temperature shift
compensation. Cold draft prevention
PAW-280PAH2 Yes Yes Yes
PAW-280PAH2M Yes Yes No
PAW-280PAH2L Yes No No
* With CZ-CAPBC2.
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System & regulations. System overview
1. AHU Kit equipment (Field supplied)
2. AHU Kit system controller (Field supplied)
3. AHU Kit controller box (with control PCB)
4. Thermistor for Gas pipe (E2)
5. Thermistor for Liquid pipe (E1)
6. Thermistor for Suction air
7. Inter-unit wiring
8. Outdoor unit
Optional parts: Following functions are available by using different control accessories:
CZ-RTC4 Timer remote controller.
· Operation-ON/OFF
· Mode select
· Temperature setting
* Fan operation signal can be taken from the PCB.
PAW-OCT, DC12 V outlet. OPTION terminal.
· Output signal= Cooling/Heating/Fan status
· Defrost
· Thermostat-ON
CZ-CAPBC2 Mini seri-para I/O unit (advanced version only).
· Easy integration in external AHU control systems and BMS
· Demand control: 40 to 115 % (5 % steps) of nominal current by 0–10 V
input signal*
· Target temperature setting by 0–10 V or 0–140 Ωinput signal*
· Mode select or/and ON/OFF control
· Fan operation control
· Operation status output/ Alarm output
· Thermostat ON/OFF control
* Demand control by external BMS cannot be combined with the demand control or target temperature
setting accomplished by the thermostat. However, if simultaneous demand control and target temperature
setting is needed, this can only be achieved by using a second (optional) CZ-CAPBC2 interface.
CZ-T10 terminal / PAW-T10 PCB to connect to T10 connector.
· A Dry contact PCB has been developed to easily control the unit
· Input signal operation ON/OFF
· Remote control prohibition
· Output signal Operation ON status maximum 230 V 5 A (NO/NC)
· Output signal alarm status max. 230 V 5 A (NO/NC)
· Alarm output (by DC12V)
· Additional available contacts:
- External humidifier control (ON/OFF) 230 VAC 3 A
- External fan control (ON/OFF) 12V DC
- External filter status signal potential free
- External float switch signal potential free
- External leakage detection sensor or TH. OFF contact potential free
(possible usage for external blow out temperature control)
PCB, Power trans,
Terminal block
AHU Connection Kit
Standard wired remote controller.Thermistor x2
(Refrigerant: E1, E2)
Thermistor
(Air: TA; 1 sensor)
1. Remote control CZ-RTC4
2. New plastic IP 65 Box
3. PAW-T10 PCB for Dry Contact
4. 0-10V demand control PCB
5. Intelligent thermostat for:
· Cold draft prevention
· Outdoor temperature shift compensation
6. Terminal base for sensors and power supply
SET
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Air volume Dimensions Piping length Elevation difference (in/out) Piping connections
AHU connection kit / System combination Min / Max H x W x D Min / Max Max Liquid pipe Gas pipe
Outdoor unit capacity AHU m³/min mm m m Inch (mm) Inch (mm)
5,00kW PAW-280PAH2 8,00 / 13,00 404 x 425 x 78 5 / 30 10 1/4 (6,35) 1/2 (12,70)
6,00kW PAW-280PAH2 9,00 / 16,00 404 x 425 x 78 5 / 30 10 3/8 (9,62) 5/8 (15,88)
7,50kW PAW-280PAH2 12,00 / 25,00 404 x 425 x 78 5 / 30 10 3/8 (9,62) 5/8 (15,88)
10,00kW PAW-280PAH2 14,00 / 33,00 404 x 425 x 78 5 / 30 10 3/8 (9,62) 5/8 (15,88)
12,50kW PAW-280PAH2 19,00 / 35,00 404 x 425 x 78 5 / 30 10 3/8 (9,62) 5/8 (15,88)
14,00kW PAW-280PAH2 19,00 / 35,00 404 x 425 x 78 5 / 30 10 3/8 (9,62) 5/8 (15,88)
20,00kW PAW-280PAH2 28,00 / 66,00 404 x 425 x 78 5 / 70 10 3/8 (9,62) 1 (25,40)
25,00kW PAW-280PAH2 38,00 / 74,00 404 x 425 x 78 5 / 70 10 1/2 (12,70) 1 (25,40)
AHU PACi Elite
Cooling capacity Heating capacity Dimensions Piping length Elevation difference (in/out)
Nominal Nominal H x W x D Min / Max Max
kW kW mm m m
PAW-280PAH2 6,00 / 25,00 7,00 / 28,00 404 x 425 x 78 5 / 30* 10
PAW-280PAH2+PAW-280PAH2 50,00 56,00 404 x 425 x 78 5 / 30* 10
* For U-200PE2E8A and U-250PE2E8A.
Air flow rate m³/min
Outdoor unit 8,00 8,33 9,00 10,00 10,83 11,67 12,00 13,00 13,33 14,00 15,00 16,00 16,67 18,00 19,00 20,00 25,00 26,67 28,00 30,00 33,00 35,00 36,00 38,00 40,00 43,33 45,00 50,00 58,33 66,00 66,67 71,67 74,00 75,00 83,33 90,00
5,00kW
6,00kW
7,50kW
10,00kW
12,50kW
14,00kW
20,00kW
25,00kW
Standard range of air flow rate under standard conditions (air intake temperature in cooling mode from 18 to 32°C DB). Extended range of air flow rate under special conditions (air intake temperature in cooling mode from 18 to 30°C DB).
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AHU Kit connects PACi outdoor units to Air Handling Units system.
The Panasonic AHU Kits offer a wealth of connectivity possibilities so can
be easily integrated into many systems.
Application: Hotels, offices, server rooms or all large buildings where air
quality control such as humidity control and fresh air and is needed.
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Air Handling Unit Kit
Installation Instructions
SET
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Air Handling Unit Kit
Installation Instructions
Original Installation Instructions (English)
July 2019
COPYRIGHT
© Panasonic Marketing Europe GmbH 2019. All rights reserved.
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Table of Contents
1 General information and safety instructions .................................................... 6
1.1 Introduction ......................................................................................................................... 6
1.2 Structure and meaning of notices and symbols.............................................................. 7
1.3 Safety instructions.............................................................................................................. 8
1.4 Instructions for the safe handling of R32 ......................................................................... 9
1.4.1 Calculating the density limit ........................................................................................ 10
1.4.2 Preventing leakages ................................................................................................... 14
1.4.3 Detecting leaks ........................................................................................................... 15
1.4.4 Repairing leaks ........................................................................................................... 15
1.5 Warranty policy ................................................................................................................... 15
2 Ventilation theory and air handling units .......................................................... 16
2.1 Purpose of air-conditioning ............................................................................................... 16
2.2 Mechanical ventilation systems ........................................................................................ 17
2.3 Air handling units................................................................................................................ 17
3 Product description ............................................................................................. 20
3.1 General description ............................................................................................................ 20
3.2 Scope of supply .................................................................................................................. 21
3.3 System lineup...................................................................................................................... 26
3.4 System Overview ................................................................................................................ 28
3.5 Technical data ..................................................................................................................... 32
4 Installation ............................................................................................................ 40
4.1 Installation of AHU Kit ........................................................................................................ 40
4.2 Installation of refrigerant piping........................................................................................ 43
4.3 Installation of expansion valve.......................................................................................... 43
4.4 Installation of thermistors.................................................................................................. 45
4.4.1 Installation of thermistor on gas pipe .......................................................................... 46
4.4.2 Installation of thermistor on liquid pipe........................................................................ 47
4.4.3 Installation of thermistor on heat exchanger pipe middle ........................................... 48
4.4.4 Installation of thermistor for suction and discharge air stream.................................... 49
4.5 Matching outdoor unit capacity with AHU Kit capacity................................................... 49
5 Electrical Wiring................................................................................................... 55
5.1 General precautions on wiring .......................................................................................... 55
5.2 Recommended wire lengths and diameters..................................................................... 56
5.3 Connection of wiring to terminals..................................................................................... 56
5.4 Terminal board layout......................................................................................................... 58
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5.5 Wiring layout ....................................................................................................................... 64
5.6 Wiring system diagrams..................................................................................................... 76
5.7 Connection of external signal lines................................................................................... 79
6 Test Run ................................................................................................................ 84
7 Control .................................................................................................................. 85
7.1 Remote controller ............................................................................................................... 85
7.2 Thermostat........................................................................................................................... 85
7.2.1 Control and display elements...................................................................................... 85
7.2.2 Operation .................................................................................................................... 85
7.2.3 Initial Settings.............................................................................................................. 91
7.2.4 Error Codes................................................................................................................. 96
7.2.5 Maintenance and Service ........................................................................................... 96
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General information and safety instructions
1 General information and safety instructions
1.1 Introduction
This document contains the installation instructions for the Panasonic AHU Kits.
AHU Kits connect Panasonic ECOi, ECO G and PACi outdoor units to third-party air handling
unit systems, using the same refrigerant circuit as the VRF system.
While ECOi and ECO G systems exclusivly use R410A as refrigerant, some PACi systems are
operated with R410A while others are operated with the new refrigerant R32.
Application examples for Panasonic AHU Kits are hotels, offi ces, server rooms or all large build-
ings where air quality control such as humidity control and fresh air is needed.
Where information in this document does not apply to all three VRF system ranges, but only to
either ECOi, ECO G or PACi systems, this will be indicated by the relevant product range logos:
The AHU Kits are supplied in three diff erent product versions, “light”, “medium” or “advanced”,
and can be selected based on the required functionality. The following products are covered in
this documentation:
Product version
Light
PAW-160MAH2L
PAW-280MAH2L PAW-280PAH2L
PAW-560MAH2L
Medium
PAW-160MAH2M
PAW-280MAH2M PAW-280PAH2M
PAW-560MAH2M
Advanced
PAW-160MAH2
PAW-280MAH2 PAW-280PAH2
PAW-560MAH2
The installation should be performed only by qualifi ed electricians in strict accordance with the
installation instructions and especially with the safety instructions given in this document.
The appliance is not to be used by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given super-
vision or instruction. Children being supervised are not to play with the appliance.
Important: Validity of this document
Due to the ongoing development and innovation of Panasonic products, this document and all
the information contained herein may not refl ect the current status of the relevant products. Pre-
liminary or missing information will be updated and added on an ongoing basis and published at
the discretion of Panasonic.
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General information and safety instructions
1.2 Structure and meaning of notices and symbols
Safety notices
WARNING
This indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
This indicates a hazardous situation which, if not avoided, could result in minor or moderate
injury.
NOTICE
This indicates a hazardous situation which, if not avoided, could result in property damage.
Other notices
Important
This indicates other important information or references to other useful sources of technical data
and descriptions.
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General information and safety instructions
1.3 Safety instructions
WARNING
The following precautions need to be followed strictly, in order to avoid hazardous situations,
which could result in death or serious injury.
Electric shock or fi re may result from inadequate or incorrect installation or wiring
procedures.
► System installation must only be performed by an experienced electrician.
►Arrange installation at the dealer where the system was purchased or use a professio-
nal installer.
► System installation must be performed in strict accordance to the installation procedu-
res described in this document.
Damage to the circuit breakers may result from incorrect electrical wiring, insuffi cient
electrical circuit capacity or use with other electrical devices.
► Always use a dedicated branch circuit for electrical wiring.
►Strictly avoid using other electrical devices within the same electrical circuit.
► Make sure the electrical circuit used has suffi cient capacity.
Overheating or fi re may result if connections or attachments are not secure.
► Use the specifi ed cables (type and wiring diameter) for the electrical connections, and
securely connect the cables.
► Run and fasten the cables securely so that external forces or pressure placed on the
cables will not be transmitted to the connection terminals.
Suff ocation can result if refrigerant gas leaks and exceeds the limit density in a small
room.
► Installation of the refrigerant piping must only be performed by an experienced, quali-
fi ed installer to minimize the risk of leaks.
►Install so that even if refrigerant gas leaks into the instalation space, it will not exceed
the practical limit density of 0.44 kg/m3for R410A and 0.061 kg/m3for R32, in ac-
cordance with the local regulations for facility air conditioning equipment. However, for
further limits and calculations to be done, see →1.4 Instructions for safe handling of
R32
►If the refrigerant gas concentration does exceed the density limit, do one of the
following:
● install an opening in a neighbouring room
● or install ventilation equipment triggered by gas leak detection sensors
● or install an automatic pump-down system provided by the manufacturer of
the equipment
Poisonous gas can result if refrigerant gas comes into contact with fi re.
►After installation of refrigerant pipes, perform a dry nitrogen gas sealing test to check
that there are no leaks.
►Ventilate the work area if refrigerant gas leaks during installation.
►Prevent the refrigerant gas from coming into contact with a fan heater, stove, range, or
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Inhaltsverzeichnis
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