Air Handling Unit Kit Installation Instructions AL1 PV OUT SV ATU SET ºC ºC
Air Handling Unit Kit Installation Instructions Original Installation Instructions (English) Preliminary version as at December 2014 COPYRIGHT © Panasonic Marketing Europe GmbH 2014. All rights reserved. .
Table of Contents 1 2 3 4 5 4 General information and safety instructions..................................................... 6 1.1 Introduction.......................................................................................................................... 6 1.2 Structure and meaning of notices and symbols............................................................... 7 1.3 Safety instructions.......................................................................................
5.6 Connection of external signal lines................................................................................... 57 5.7 Electric circuit examples..................................................................................................... 59 6 Test Run................................................................................................................. 60 7 Control.......................................................................................................
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.
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.
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 fire 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 professional installer.
General information and safety instructions ►► Prevent the refrigerant gas from coming into contact with a fan heater, stove, range, or other source of fire. Incorrect installation can result in falling equipment causing damage, injuries or other accidents. ►► Install in a location that is fully strong enough to support the weight of the equipment. ►► Perform installation that is secure enough to withstand earthquakes, whirlwinds, storms and other strong winds.
Ventilation theory and air handling units 2 Ventilation theory and air handling units 2.1 Purpose of air-conditioning The purpose of air-conditioning is to provide comfortable indoor air conditions for the room occupants and to provide energy saving potentials for the owner.
Ventilation theory and air handling units Ventilation demands Ventilation must meet the following demands: ●● ●● ●● ●● Provide outside air (oxygen) for breathing Control of indoor air contaminants Covering of the building’s thermal loads (temperature and humidity control) Setting of uniform conditions in the occupied zone As the outside or ambient air varies in temperature, humidity, contamination etc.
Ventilation theory and air handling units and heating coils, variable air volume (VAV) valves, thermostats and other air-handling equipment are used. Supply air fan Filter Dampers Return air fan Heating Air handling unit (AHU) Cooling Exhaust Outside air air VAV valve VAV valve Solar radiation Thermostat Thermostat Wind Return air 2.
Ventilation theory and air handling units In most cases, the pressure in ventilated spaces is equal to the atmospheric pressure of the outside. This means that the air-flow delivered to a space equals the airflow brought back from a space. Such spaces are described as neutral or balanced. However, in mechanical ventilation systems the supply air and return air flows might be sized differently, when necessary.
Ventilation theory and air handling units Air handling units can be manufactured targeted at the specific purpose for which they will be used. Possible features comprise, but are not limited to the following non-exhaustive list of characteristics: ●● ●● ●● ●● ●● ●● ●● ●● Construction: monoblock or split in separate delivery sections Installation location: indoor, outdoor Execution: horizontal, vertical, double deck or side-by-side Design: e.g.
Ventilation theory and air handling units Supply/Exhaust type with cross-flow heat exchanger Supply/Exhaust type with mixing chamber Supply exhaust type with rotary heat exchanger 15
Ventilation theory and air handling units Supply/Exhaust type with glycol heat exchanger Connecting AHU systems via the AHU Kit to ECOi/ECO G or PACi outdoor units The following graphic shows an example for connecting a third-party air handling unit via the Panasonic AHU Kit to Panasonic ECOi/ECO G or PACi outdoor units.
Product description 3 Product description 3.1 General description 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. Application examples for Panasonic AHU Kits are hotels, offices, server rooms or all large buildings where air quality control such as humidity and temperature control and fresh air is needed.
Product description The light version, denominated by the letter “L” in the model name, contains the following components: ●● ●● ●● ●● ●● ●● ●● ●● ●● ●● IP65 case Control unit including transformer Relays Terminal boards Remote controller (CZ-RTC2) PCBs for the expansion and RAP valves PCB for T10 connection (PAW-T10) Expansion valve (only for ECOi and ECO G) Refrigerant temperature sensors (E1, E2/E3) Air intake and air outlet temperature sensors (TA, BL) In addition to this, the advanced version, witho
Product description 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 Ω input signal* ●● Room supply air temperature output by 4–20 mA 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
Product description 3.
Product description System lineup – PACi systems Capacity (kW) Outdoor unit1 AHU Kit PACi Standard PACi Elite Single-phase units Three-phase units Single-phase units Three-phase units 5.0 – – U-50PE1E5 – 6.0 U-60PEY1E5 – U-60PE1E5A – 7.1 U-71PEY1E5 – U-71PE1E5A U-71PE1E8A 10.0 U-100PEY1E5 U-100PEY1E8 U-100PE1E5A U-100PE1E8A 12.5 U-125PEY1E5 U-125PEY1E8 U-125PE1E5A U-125PE1E8A 14.0 – U-140PEY1E8 U-140PE1E5A U-140PE1E8A 20.0 – – – U-200PE1E8 25.
Product description Exterior view of the AHU Kit Expansion valve AHU Kit including PCB, power transformer, terminal block Note: AHU Kit shown with transparent front cover removed.
Product description Wiring layout CONNECTOR 6P (YEL) TERMINAL TERMINAL 1Z5 1Z3 OP3 2Z7 6 05 06 TERMINAL M1.1 M1.2 M1.3 M1.4 M1.5 M1.
4 5 CONNECTOR 6P (YEL) 6 1 2 4 3 TERMINAL 5 TERMINAL 1Z5 1Z3 OP3 2Z7 6 05 06 TERMINAL M1.1 M1.2 M1.3 M1.4 M1.5 M1.6 M2.1 M2.2 M2.3 M2.4 M2.
1 2 3 4 5 CONNECTOR 6P (YEL) 6 1 2 4 3 5 TERMINAL TERMINAL 1Z5 1Z3 OP3 2Z7 6 05 06 TERMINAL M1.1 M1.2 M1.3 M1.4 M1.5 COM DI1 DI2 DI3 COM DO2 COM DO1 BRN ORG YEL BLU 5 COM DO2 COM DO1 ORG RED YEL BLK GRY R2 8 3 1 CR-MOVG1-P MOV IN (WHT) 1 2 3 4 5 TO (WHT) 1 2 1 2 1 3 5 7 9 1 3 TRANS-P FAN (WHT) (WHT) 1 2 3 4 TRANS-S (WHT) 1 2 3 4 5 6 PMV (WHT) 1 2 HBS (YEL) (GRN) BL 1 2 (RED) FS 1 3 GRN BLK BLK BLK BLK BLK BLK RED BLK RED WHT TA1 TA2 E1.1 E1.2 E3.1 E3.
Product description R2 TERMINAL TERMINAL 1Z5 1Z3 OP3 2Z7 EX1 EX2 05 06 COM DI1 DI2 DI3 COM DO2 COM DO1 BRN ORG YEL BLU CZ-RTC2 5 7 1Z 5 CN2 CZ-CAPBC2 2Z 1 8 3 VLT RED 1 1 2 3 4 RED 3 WHT 8 GRY 7 COM DO2 COM DO1 R2 WHT BLK ORG R1 5 6 7 8 9 10 11 12 13 - + 14 15 1 3 TRANS-P (WHT) 1 2 3 4 TRANS-S (WHT) 1 2 3 4 5 6 PMV (WHT) 1 2 HBS (YEL) GRN BLK BLK BLK BLK RED BLK RED WHT TA1 TA2 E1.1 E1.2 E3.1 E3.
Product description 3.6 AHU Kit enclosure configuration AHU Kit enclosure configuration AL1 PV OUT SV ºC ºC ATU SET Note: AHU Kit shown with transparent front cover removed. Mounting boards Upper mounting board 1 2 3 Upper mounting board 1 Remote controller (CZ-RTC2) 2 Thermostat (TR-16) 3 External signal control PCB (PAW-T10) 4 Terminal board with 6 connectors (labelled Section A to Section F) each with 20 contacts1 4 1 For details see “5.4 Terminal block layout”.
Product description Lower mounting board Lower mounting board 5 Auxiliary transformer 6 Transformer 7 Relay 8 Single motorized valve PCB 9 Relay 10 Single RAP valve control PCB2 11 Double RAP valve control PCB2 5 11 6 10 7 8 9 2 Depending on the model used, the single RAP valve control PCB (10) or double RAP valve control PCB (11) is mounted in this position. 3.
Product description System example for ECOi single-connection system Air Handling Unit Kit PAW-280MAH2 I/D-O/D wiring Wiring for Thermostat & Solenoid Valve Piping ECOi or ECO G Air Handling Unit Multi-connection system Note: The following restrictions apply only if PAW-560MAH2(L) is used alone or in combination with other AHU Kits. For all other AHU Kits and AHU Kit combinations without PAW-560MAH2(L) no such restrictions apply.
Product description System example for ECOi multi-connection system (140 kW capacity) Fan operation signal Gas temperature 28 kW H/E Liquid temperature PAW-280MAH2 16 HP 16 HP 18 HP 56 kW H/E PAW-560MAH2 56 kW H/E PAW-560MAH2 Inlet temperature Fan motor control PCB Outlet temperature Gas tube Liquid tube O_U / I_U communication System Overview – ECO G systems Single-connection1 or multiple-connection2 systems A B C D E F G AHU Kit enclosure (complete) AHU system (field supplied) Remote control
Product description System Overview – PACi systems Single-connection1 system only Strainer (liquid pipe & gas pipe) min. Ø 25.
Product description 3.8 i Technical data and limitations Important Apart from the technical data and limitations given in the following tables, the technical data and limitations of the relevant outdoor units, local wiring and piping design regulations and approved best practices need to be observed in installation procedures.
Product description Technical data and limitations – PACi systems AHU Kit Outdoor unit PACi Standard Nominal cooling capacity Nominal heating capacity Air volume (Cooling) Min (factory) Max (factory) Air volume (Cooling), Max subject to restrictions¹ AHU DX coil heat Min (factory) exchanger volume Max (factory) AHU DX coil heat Max exchanger volume, Additional ref. charge subject to restrictions2 Max. additional refrigerant charge Max. pipe length Max. ambient temp.
Product description Technical data and limitations – PACi systems (cont.) AHU Kit Outdoor unit PACi Elite Nominal cooling capacity Nominal heating capacity Air volume (Cooling) Min (factory) Max (factory) Air volume (Cooling), Max subject to restrictions¹ AHU DX coil heat Min (factory) exchanger volume Max (factory) AHU DX coil heat Max exchanger volume, Additional ref. charge subject to restrictions2 Max. additional refrigerant charge Max. pipe length Max. ambient temp.
Product description Technical data and limitations – PACi systems (cont.) AHU Kit Outdoor unit PACi Elite Nominal cooling capacity Nominal heating capacity Air volume (Cooling) Min (factory) Max (factory) Air volume (Cooling), Max subject to restrictions¹ AHU DX coil heat Min (factory) exchanger volume Max (factory) AHU DX coil heat Max exchanger volume, Additional ref. charge subject to restrictions2 Max. additional refrigerant charge Max. pipe length Max. ambient temp.
Product description Distance between tube sheets: 1,000 mm Number of row: 3 Minimum number of passes = 12 × 3 × 1.5 × 10–4 = 5.4 This value must be rounded up to 6. This means that the minimum number of passes is 6 passes. ! NOTICE Nuisance tripping of high-pressure switch The outdoor unit is equipped with a high-pressure switch, which stops the operation of the airconditioning unit for protection when the set high-pressure limit is exceeded.
Installation 4 Installation 4.1 Installation of AHU Kit WARNING Electric shock from live power supply cords Electric shock may result from contact with live power supply cords. ►► Wiring installation must only be performed by a qualified electrician. ►► Before starting to work on any machines or devices, always switch off the power supply and lock it in switched-off position.
Installation 2. Loosen the 4 screws in the corners of the enclosure and remove the cover from the enclosure. 3. Mount the backside of the enclosure to the wall or surface using field-supplied fixing screws inserted through the previously prepared holes at each corner.
Installation ! NOTICE Signal errors through noise from live power supply cords Power supply cords can generate noise, which may cause signal errors, if they are run in close vicinity to any low-voltage control wiring. ►► Keep 230 V AC power supply wiring apart from the low-voltage control wiring for sensors etc. ►► Route 230 V AC power supply wiring through different cable glands than the low-voltage control wiring. 4.
Installation 4.
Installation 4.3 Installation of expansion valve Installation of expansion valve – ECOi and ECO G systems ! NOTICE Damage to the expansion valve wires Exposing the wires of the expansion valve to the outside and/or to direct sunlight might damage the wires and should therefore be avoided. ►► Attach the AHU Kit either directly to the Air Handling Unit or to a wall nearby and make sure that it is not exposed to direct sunlight.
Installation ●● The coil wire must be inserted drooped in the AHU body with the drooping wire being close to the AHU Kit. Inside of AHU AHU Kit Drooping wire i 4.4 ! Important If there are multiple heat exchangers in one ECOi system, an individual expansion valve must be installed for each heat exchanger. Installation of thermistors NOTICE Damage to the thermistor wires Exposing the wires of thermistors to the outside and/or to direct sunlight might damage the wires and should therefore be avoided.
Installation ●● The thermistor wire must point downwards from the thermistor to avoid water reaching the thermistor. ●● The thermistor wire must be inserted drooped in the AHU body with the drooping wire being close to the AHU Kit. Inside of AHU AHU Kit Drooping wire i Important If there are multiple heat exchangers in one ECOi system, an individual thermistor must be installed for each heat exchanger. 4.4.
Installation 2. Cover the thermistor and pipe with aluminum tape. 3. Cover the aluminum tape with thermal insulation. 4. Fix thermal insulation and wiring with two bands. Then, run the wire downwards in a loop, to avoid putting tension to it. For PAW-280MAH2(L) and PAW-560MAH2(L) 1. Upon delivery, for PAW-280MAH2(L) and PAW-560MAH2(L) there is a sensor sleeve soldered to the gas pipe after the expansion valve: Insert the sensor together with some heat sink paste into the sensor sleeve. 2.
Installation 4.4.2 Installation of thermistor on liquid pipe Mount “E1” thermistor to liquid pipe of AHU heat exchanger according to the following instructions. 1. Attach the liquid pipe thermistor to the liquid pipe located in the lowest position after the distributor in the heat exchanger. 2. Cover the thermistor and pipe with aluminum tape. 3. Cover the aluminum tape with thermal insulation. 4. Fix thermal insulation and wiring with two bands.
Installation 4.4.3 Installation of thermistor on heat exchanger pipe middle Installation of thermistor on heat exchanger pipe middle – PACi systems Mount “E2” thermistor to heat exchanger pipe middle according to the following instructions. 1. Attach the heat exchanger pipe middle thermistor in the middle of each pass-line (pipe) in the heat exchanger. 2. Cover the thermistor and pipe with aluminum tape (field-supplied). 3. Fix thermistor with two bands.
Installation 4.4.4 Installation of thermistor for suction and discharge air stream Mount the suction and discharge air thermistors according to the following instructions. 1. For ECOi, ECO G and PACi systems, attach the suction air thermistor (TA) to the position where air suction temperature can be measured. 2. In addition to this, for ECOi and ECO G systems attach also the discharge thermistor (BL) to the position where air discharge temperature can be measured. 3.
Installation 3. Place a NOTE label, which indicates that the jumper wire has been cut, in the following designated areas on the outdoor unit. NOTES* NOTES* 48 *P osition of designated area for NOTES label depends on model type.
Electrical Wiring 5 Electrical Wiring 5.1 General precautions on wiring WARNING Electric shock from live power supply cords Electric shock may result from contact with live power supply cords. ►► Wiring installation must only be performed by a qualified electrician. ►► Before starting to work on any machines or devices, always switch off the power supply and lock it in switched-off position.
Electrical Wiring 5.2 i Recommended wire lengths and diameters Important ●● The letter coding (A to F) used in the following tables refers to the wiring system diagrams in the next section. ●● For information on “(A) Power supply of outdoor unit” refer to the “Installation Instructions“ for the relevant outdoor unit. Indoor unit Type (B) Power supply Time delay fuse or circuit breaker AHU Kit 2.5 mm2 (AWG#13) 10 – 16 A Max.
Electrical Wiring 5.3 Wiring system diagrams Wiring system diagram – ECOi systems Remote controller WHT 1 2 BLK AHU Kit (No. 1) L N Power supply 220 – 240V ~50/60Hz L N Ground B D 1 2 Outdoor unit INV unit C U1 1 U2 2 Ground R1 R2 C Power supply 220 – 240V ~50/60Hz Remote controller WHT 1 2 BLK Ground F Ground AHU Kit (No.
Electrical Wiring Wiring system diagram – PACi systems For single-phase outdoor units AHU Kit Power supply 220 – 240V ~50/60Hz Outdoor unit INV unit Power supply 220 – 240V ~50/60Hz Ground Remote controller WHT BLK Ground Ground Ground Ground For three-phase outdoor units AHU Kit Power supply 220 – 240V ~50/60Hz Outdoor unit INV unit Ground Remote controller WHT BLK Power supply 380 – 415V 3N ~50/60Hz Ground Ground Ground Ground Notes on wiring system diagrams – All systems 1.
Electrical Wiring 6. Use the standard power supply cables for Europe (such as H05RN-F or H07RN-F which conform to CENELEC(HAR) rating specifications) or use the cables based on IEC standard (245 IEC57, 245 IEC66). 7. When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all but one of the outdoor units. (When shipping: in shorted condition.) For a system without link (no wiring connection between outdoor units), do not remove the short plug. 8.
Electrical Wiring ! NOTICE Overheating of terminals with resulting unit malfunction or even fire due to loose wiring Loose wiring may cause the terminal to overheat resulting in unit malfunction or a fire hazard. ►► When connecting each power wire to the terminal, follow the instructions on how to connect wiring to the terminal (see next section) and fasten the wire securely with the terminal screw. ►► Check and ensure that all wiring is tightly connected. 5.4 Terminal block layout Section A No.
Electrical Wiring Section D Section E Name Description Note No. 1 L Power supply 230 V AC / max. 1 A 2 N Neutral conductor 230 V AC / max.
Electrical Wiring 4. Place the wire-end sleeve into the socket on the connector and replace and tighten the removed terminal screw using a flat-blade screwdriver. Special washer Screw Screw and special washer Terminal plate Wire-end sleeve Wire Wire Wire-end sleeve Shielded wire 1. Remove cable sheath not to scratch braided shield. 2. Unbraid the braided shield carefully and twist the unbraided shield wires tightly together.
Electrical Wiring 5.6 Connection of external signal lines When installing the external signal lines (blower signal output and blower protection input), the following installation requirements need to be observed: ●● Blower signal and blower protection lines must be routed through left wiring port below the terminal board.
Electrical Wiring Blower signal output This fan control is usually at ON position at the time of operating, but becomes OFF in defrosting. Minimum applicable load: Maximum applicable load: 10P Connector / Section D 10 X1: Relay (field supplied) 9 8 7 6 5 4 3 2 5 V DC, 1 mA 230 V AC, 2 A 5 X1 4 1 If uninterrupted fan operation is needed and cold draft air is avoided for example by some internal bypass etc.
Electrical Wiring 5.
Test Run 6 Test Run After installation and before operation of the system, perform a test run according to the Test Run section in the Installation Instructions of the relevant outdoor unit. If alarm messages are indicated on the outdoor unit PCB (by blinking LEDs) or on the wired remote controller, refer to the Alarm Messages section in the Installation Instructions for the relevant outdoor unit.
Control 7 Control 7.1 Remote controller The standard Panasonic wired remote controller CZ-RTC2 is an integral part of the AHU Kit. All control and setting operations for the ECOi, ECO G or PACi system can be performed on this remote controller. i 7.2 Important The relevant control operations are described in the “Operating Instructions” manual for the CZ-RTC2 remote controller. It is supplied with the AHU Kit or can be downloaded from the “Service” section at www.panasonicproclub.com.
Control 7.2.2 Operation Status messages After the thermostat has been switched on, the PV and SV displays jointly show a set sequence of three status messages before they change to the normal view where the current process value is shown on the PV display and the currently set temperature value is shown on the SV display. Control voltage switched on Normal view 1. Software version view (factory setting) 2. Input specification view (factory setting) 3.
Control i Important The set temperature value, which is adjustable by the above procedure, can be used in different ways and with different functions depending on how the thermostat is used in the individual application. For further information see “7.2.3 Initial Settings”. Changing values in the “Parameter” menu To change the values of control parameters, perform the following steps: 1. Press and hold the button for approximately 3 seconds to enter the “Parameter” menu. 1 x for 3 sec.
Control Parameter menu No. Parameter code Parameter name Setting range Description 1 ALI Inactive – 2 HY Hysteresis 0 ... 50 Switching difference relative to the set value, unilateral (i. e. the value is added either below (“heating mode”) or above (“cooling mode”) the set value) 3 P Proportional band (P) 000 ... 999 Proportional action for the PID-controlled system 4 i Integral time (I) 0 ... 999 s Integral action for the PID-controlled system 5 d Derivative time (D) 0 ...
Control ! NOTICE System heat-up to temperatures significantly exceeding the set temperature value During Auto-Tuning mode the system may heat up to temperatures significantly exceeding the set temperature value and may cause damage to sensitive applications. ►► Before starting the Auto-Tuning mode, the set temperature value should be reduced to an uncritical value.
Control 4. Press the button repeatedly to select the entry “PSL”. repeatedly 5. Use the and buttons to change the value to either “0” (= factory setting) for „heating mode“ or “1” for „cooling mode“. 6. Confirm the complete parametrization by pressing and holding the matedly 3 seconds. button for approxi- 1 x for 3 sec. Parametrization is now complete. The PV and SV displays have returned to showing the current temperature and the set temperature values respectively.
Control 5. Use the and buttons to change the value to either “1” for “output 2 ... 10V” or “2” (= factory setting) for „output 0 ... 10V“. 6. Confirm the complete parametrization by pressing and holding the matedly 3 seconds. button for approxi- 1 x for 3 sec. Parametrization is now complete. The PV and SV displays have returned to showing the current temperature and the set temperature values respectively. 7.2.
Control 6. Restore and fasten the upper mounting board in its original position, and close the AHU Kit enclosure again (see “4.1 Installation of AHU Kit“ – step 5). Case 2: Adjusting the temperature setpoint based on ambient air temperature To set the thermostat for adjusting the temperature setpoint based on ambient air temperature (Tout), perform the following steps: 1.
Control 6. On the CZ-CAPBC2 PCB, located on the lower mounting board inside the AHU Kit enclosure, make sure that switches S1 to S4 are set as follows: a. S1: Set to “OFF-ON-OFF-ON” (factory default on AHU Kit) b. S2: All jumpers are intact, i e. no jumper has been cut. c. S3: Set to “VOLTAGE” or “NO VOLTAGE”, depending on the local digital input (DI) configuration. Control via dry contacts (factory default) = “NO VOLTAGE” Control via 12 – 24 V DC signals = “VOLTAGE” 12 –24 V DC GND d.
Control 7. Restore and fasten the upper mounting board in its original position, and close the AHU Kit enclosure again (see “4.1 Installation of AHU Kit“ – step 5). Case 3: 0–10 V demand control by an external BMS To set the thermostat for 0–10 V demand control by an external building management system (BMS), perfom the following steps: 1. Open the AHU Kit enclosure (see “4.1 Installation of AHU Kit“ – step 2), and remove the upper mounting board. 2.
Control 3. On the CZ-CAPBC2 PCB, cut jumper “JP1”, in order to activate the 0–10 V demand control mode for the external BMS. Make sure that all other jumpers remain intact. 4. On the CZ-CAPBC2 PCB, set switch S3 to “VOLTAGE” or “NO VOLTAGE”, depending on the BMS digital input (DI) configuration. Control via dry contacts (factory default) = “NO VOLTAGE” Control via 12 – 24 V DC signals = “VOLTAGE” 12 –24 V DC GND 5. Restore and fasten the upper mounting board in its original position. 6.
Control 7. Close the AHU Kit enclosure again (see “4.1 Installation of AHU Kit“ – step 5). 8. Via the signal wiring from the external BMS, which is now connected to contacts AI3 and AI4 (see step 2), select the 0–10 V demand control functionality as follows: Input Voltage* (V) 0 – 0.5 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 – 10.
Control 7.2.6 Technical data Dimensions (W x H x D) mm 48 x 48 x 90 (approximately) Required void space mm 85 mm (approximately) Mounting cut-out (W x H) mm 44 x 44 (DIN 1/16) Display indicating range °C –50 ... +580 Temperature measuring range °C –50 ... +580 Display height mm 10 (approximately) Measuring increments °C 0.1 Indicating increments °C 1 Sampling period sec <3 Output signal (factory setting) V 0 ... 10 Output signal (alternative setting) V 2 ...
www.aircon.panasonic.eu Due to the ongoing innovation of our products, the specifications of this catalogue are valid barring typographic errors, and may be subject to minor modifications by the manufacturer without prior warning in order to improve the product.
