Page 2 - TECHNICAL CHANGES
2 2-1. INDOOR UNIT Model name Service Ref. Service Manual No. PLA-A18/30/36BA PLA-A18/36BA (1) OCH420 OCB420 PKA-A18GA PKA-A18GA/GA 1 /GA 2 OC369 PKA-A18GAL PKA-A18GAL/GAL 1 /GAL 2 PKA-A30/36FA PKA-A36FA/FA 1 /FA 2 PKA-A30/36FAL PKA-A36FAL/FAL 1 /FAL 2 2-2. TECHNICAL DATA BOOK PLA-A30BA 2 PKA-A30FA ...
Page 3 - SAFETY PRECAUTION; Cautions for units utilizing refrigerant R410A; Use new refrigerant pipes.
3 3 SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A 3-2. CAUTIONS RELATED TO NEW REFRIGERANT Use new refrigerant pipes. Make sure that the inside and outside of refrige-rant piping is clean and it has no contaminationsuch as sulfur hazardous for use, oxides, dirt, shaving particles,...
Page 4 - When charging directly from cylinder
4 Gravimeter Unit [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. Tool name Specifications 1 Gauge manifold · Only for R410A · Use the existing fitting specifications. · Use high-tension side pressure of 5.3MPa·G or over. 2 Charge hose · Only for R410A · U...
Page 5 - -3. CAUTIONS FOR REFRIGERANT PIPING WORK; Thickness of pipes
5 3-3. CAUTIONS FOR REFRIGERANT PIPING WORK New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R...
Page 6 - FEATURES; HIGH HEATING CAPACITY; Performance; Expanded
6 4 FEATURES HIGH HEATING CAPACITY Industry-first flash injection circuit is equipped, which enables to keep the equal capacity to the rating even when outside tem-perature is 5°F[-15°C]. HIGH SPEED HEATING START UP The performance of heating start up is improved. Compared to PUZ-A type, Hyper Heati...
Page 7 - SPECIFICATIONS
7 5 SPECIFICATIONS Service Ref. PUZ-HA36NHA Power supply Phase Single Cycle 60Hz Voltage 208/230V MCA A 28 MOCP A 40 Breaker size A 30 External finish Munsell 3Y 7.8/1.1 Heat exchanger Plate fin coil Defrost method Reverse cycle Crankcase heater kW - Compressor Hermetic Model ANB33FJCMT Motor output...
Page 8 - Longer pipe than 100 ft, additional charge is required.; DATA; MICROPHONE
8 Piping Length (one way) Charged Factory Service Ref. 100ft 110ft 120ft 130ft 140ft 150ft 160ft 165ft 30m 33m 37m 40m 43m 46m 49m 50m PUZ-HA30NHAPUZ-HA36NHAPUZ-HA30NHA2PUZ-HA36NHA2 PUZ-HA36NHA 194 oz 200 oz 206 oz 212 oz 218 oz 224 oz 230 oz 237 oz 195 oz 5.5 kg 5.7 kg 5.9 kg 6.0 kg 6.2 kg 6.4 kg 6...
Page 11 - OUTLINES AND DIMENSIONS; Example of Notes
11 7 OUTLINES AND DIMENSIONS PUZ-HA30NHA Unit : mm<inch> PUZ-HA36NHAPUZ-HA30NHA2PUZ-HA36NHA2 Min. 1000mm <39-3/8> Min. 150mm <5-29/32> Min. 10mm <3/8> Min. 10mm <3/8> FREE <Foundation bolt height> FOUNDATION Service space Terminal Block Left···Power supply wiring ...
Page 12 - WIRING DIAGRAM
12 8 WIRING DIAGRAM 1 2 3 4 5 6 7 8 MODEL SW6 + 1MODEL SELECT + 2. SW5 -1 to 5 : Function Switch SW5-6 + 2 OFF ON 30N OFF ON 1 2 3 4 5 6 TB1MCMF1, MF221S463H TH3,TH32,TH33TH4TH6TH7TH8LEV-A, LEV-B,LEV-CDCL Terminal Block<Power Supply, Indoor/Outdoor >Motor for CompressorFan Motor Solenoid Valve...
Page 13 - WIRING SPECIFICATIONS; -1. INDOOR UNIT POWER SUPPLIED FROM OUTDOOR UNIT; Simultaneous twin system
13 9 WIRING SPECIFICATIONS 9-1. INDOOR UNIT POWER SUPPLIED FROM OUTDOOR UNIT The following connection patterns are available.The outdoor unit power supply patterns vary on models. 1:1 System Simultaneous twin system Outdoor unit power supply Wiring circuit breaker or isolating switch Outdoor unit In...
Page 17 - REFRIGERANT SYSTEM DIAGRAM; Refrigerant flow in cooling; repeat step
17 10 REFRIGERANT SYSTEM DIAGRAM PUZ-HA30NHA PUZ-HA36NHA unit : mm(inch) PUZ-HA30NHA2 PUZ-HA36NHA2 Distributor Thermistor TH7 (Outdoor) Heat exchanger Refrigerant GAS pipe connection : 15.88(5/8) Refrigerant LIQUID pipe connection : 9.52 (3/8) Stop valve (with service port) Strainer #100 Power recei...
Page 18 - TROUBLESHOOTING; age, loosened connections and incorrect polarity.
18 11 TROUBLESHOOTING <Error code display by self-diagnosis and actions to be taken for service (summary)> Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit. Actions to be taken for service, which depends on whether or not th...
Page 19 - Operating procedures
19 [TEST] button Pipe (liquid) temperature Displays the remainingtest run time. "TEST RUN" and the currently selectedoperation mode are displayed altemately. F • In case of test run, the OFF timer will be activated, and the test run will automatically stop after 2 hours.• The room temperatur...
Page 20 - Start and finish of test run [For outdoor controller board]; Test run [for wireless remote controller]; • Point the remote controller towards the indoor unit receiver; Stop
20 Start and finish of test run [For outdoor controller board] • Operation from the indoor unit Execute the test run using the installation manual for the indoor unit. • Operation from the outdoor unit By using the DIP switch SW4 on the control board of outdoor unit, test run can be started and fini...
Page 21 - CHECK; To clear the error code, press the
21 11-3. HOW TO PROCEED "SELF-DIAGNOSIS" 11-3-1. When a Problem Occurs During Operation ON/OFF When using remote-/local-controller combined operation, cancel the error code after turning off remote operation. Duringcentral control by a MELANS controller, cancel the error code by pressing the...
Page 23 - • The check mode is cancelled.; Malfunction-diagnosis method at maintenance service>
23 • "CHECK" lights, and refrigerant address "00" blinks.• Check that the remote controller's display has stopped before continuing. • Select the refrigerant address of the indoor unit for the self-diagnosis.Note: Set refrigerant address using the outdoor unit’s DIP switch (SW1). (Fo...
Page 25 - ; Error Code
25 11-4. SELF-DIAGNOSIS ACTION TABLE <Abnormalities detected when the power is turned on> (Note 1) Refer to indoor unit section for code P and code E. Error Code Abnormal point and detection method Case Judgment and action None — 1 No voltage is supplied to termi- nal block(TB1) of outdoor uni...
Page 27 -
27 <Abnormalities detected while unit is operating> Error Code Abnormal point and detection method Judgment and action U1 (1302) High pressure (High-pressure switch 63H worked) Abnormal if high-pressure switch 63H worked ( w ) during compressor operation. w 4.15 MPa [602PSIG] 63H: High-pressur...
Page 34 - Continued to the next page.
34 Continued to the next page. Error Code Abnormal point and detection method Case Judgment and action A7 (6607) NO ACK signal 1. Transmitting side controller detects abnormal if a message was transmitted but there is no reply (ACK) that a mes-sage was received. Transmitting side detects abnormality...
Page 35 - From the previous page.
35 5. If displayed address or attribute is FRESH MASTER, indoor unit detects abnormality when indoor unit transmitted to FRESH MASTER and there was no reply (ACK). 1 During sequential operation of indoor unit and FRESH MASTER of other refrigerant system, if indoor unit transmits to FRESH MASTER whil...
Page 36 - 1-5. TROUBLESHOOTING BY INFERIOR PHENOMENA
36 11-5. TROUBLESHOOTING BY INFERIOR PHENOMENA Phenomena Factor Countermeasure 1. Remote controller display does not work. 2. “PLEASE WAIT” display is remained on the remote controller. 3. When pressing the remote controller operation switch the OPERATION display is appeared but it will be turned of...
Page 39 - Symptoms: Nothing is displayed on the remote controller
39 AC 187V to AC 253V? AC 187V to AC 253V? AC 187V to AC 253V? DC 12V to DC 16V? DC 12V to DC 16V? NO YES NO YES NO YES YES NO YES NO Check the voltage between S1 and S2 on the terminal block (TB4) of the indoor unit. Check the voltage among L1 and L2 on the terminal block (TB1) of the outdoor power...
Page 48 - Medium temperature thermistor; Temperature
48 11-7. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3)• Thermistor <Outdoor 2-phase pipe> (TH6)• Thermistor <Outdoor> (TH7)• Thermistor <Outdoor pipe> (TH32)• Thermistor <Outdoor pipe> (TH33) 0...
Page 49 -
49 <Output pulse signal and the valve operation> (2) Linear expansion valve operation Open Extra tightning (about 32 pulse) Pulse number 500 pulse Opening a valve all the way Close V alve position (capacity) Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8 Closing a valve : 1 → 2 → 3 → 4 → ...
Page 50 - (3) How to attach and detach the coil of linear expansion valve; Be sure to attach
50 Main body Lead wire Stopper Coil (3) How to attach and detach the coil of linear expansion valve <Composition>Linear expansion valve is separable into the main body and the coil as shown in the diagram below. Be sure to attach the stopper. A <How to attach the coil> Hold the lower par...
Page 51 - (2) Check the following items and cautions for emergency operation
51 (4) Releasing emergency operation 1 Turn the main power supply off. 2 Set the emergency operation switch (SWE) on indoor controller board to OFF. 3 Set the shorting pins of emergency operation connector (CN31) on outdoor controller board to OFF. 4 Set SW4-2 on outdoor controller board as shown in...
Page 52 - (5) Operation data during emergency operation
52 (5) Operation data during emergency operation During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation are set to the following values: Intake temperature (TH1) Indoor fluid pipe temperature (TH2) Indoor 2-phase pipe temperature (TH5) ...
Page 56 - Load; Connection and internal circuit diagram
56 Active filter modulePUZ-HA30NHA PUZ-HA36NHA PUZ-HA30NHA2 PUZ-HA36NHA2 L1, L2Connect to the DCL(Reactor) Connect to the outdoor power circuit board(TABP1) Connect to the outdoor power circuit board(TABN1) + – IoConnect to the outdoor power circuit board(TABN2) N2Non-connect N1Non-connect PConnect ...
Page 59 - Special function; How to wire; CNDM; Brown 2
59 Special function (a) Low-level sound priority mode (Local wiring) Unit enters into Low-level sound priority mode by external signal input setting. Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual. Adding a commercial time...
Page 60 - ; to connector CNM on outdoor controller board.; EF
60 <Display function of inspection for outdoor unit> The blinking patterns of both LED1(green) and LED2(red) indicate the types of abnormality when it occurs. Types of abnormality can be indicated in details by connecting an optional part “A-Control Service Tool (PAC-SK52ST)” to connector CNM ...
Page 62 - SW2 setting; Display detail
62 <Outdoor unit operation monitor function>[When optional part “A-Control Service Tool(PAC-SK52ST)” is connected to outdoor controller board(CNM)] Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on “A-Co...
Page 68 - Pulse
68 SW2 setting Display detail Explanation for display Unit 1 ON 2 3 4 5 6 Pulse LEV-A opening pulse on error occurring0~480 0~480(When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.)(Example) When 130 pulse; 0.5 secs. 0.5secs. 2 secs. 30 1 ˚ F Indoor room ...
Page 70 - Code; Display Compressor operating frequency control
70 SW2 setting Display detail Explanation for display Unit Controlling status of compressor operating frequency 1 ON 2 3 4 5 6 Code display The following code will be a help to know theoperating status of unit. Display Compressor operating frequency control Display Compressor operating frequency con...
Page 71 - Reduces maintenance work drastically.; Switching to maintenance mode; TEST; button for 3 seconds to switch to maintenance mode.; Fixed Hz operation; button to select the desired operation mode.; ] Waiting for stabilization; Stabilized; Discharge temperature 147; EASY MAINTENANCE FUNCTION
71 ● Reduces maintenance work drastically. ● Enables you to check operation data of the indoor and outdoor units by remote controller.Furthermore, use of maintenance stable-operation control that fixes the operating frequency, allows smooth inspection, even forinverter models. 12-1. MAINTENANCE MODE...
Page 72 - Data measurement; MENU; Display
72 ● Data measurement When the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( and ) to select the desired refrigerant address. [Screen ] (5) Select the type of data to be displayed. After selecting, go to step (6). Compressor information MENU butto...
Page 73 - Check Points; Enter the temperature differences between; Result
73 12-2. GUIDE FOR OPERATION CONDITION Inspection item Result Power supply Loose con- nection Breaker Good Retightened Terminal block Outdoor Unit Good Retightened Indoor Unit Good Retightened (Insulation resistance) M (Voltage) V Accumulated operating time Time Number of ON/OFF times Times Current ...
Page 74 - FUNCTION SETTING; Function; 3-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER; No.1 Average data of the
74 13 FUNCTION SETTING Function Settings Mode No. Setting No. : Initial setting (when sent from the factory) Remarks Power failure automatic recovery Indoor temperature detecting LOSSNAY connectivity Power supply voltage Frost prevention temperature Humidifier control Change of defrosting control No...
Page 75 - Less smudging
75 Function Settings No. Mode No. Setting : Initial setting (Factory setting) - : Not available 4-Way cassette Wall mounted PKA-GA(L) PKA-FA(L) Filter sign 100h 1 2500h 07 2 "Clean the filter" indicator is not displayed 3 Air flow Quiet 1 - (Fan speed) Standard 08 2 - High ceiling 3 - No.of ...
Page 76 - 3-1-1. Selecting functions using the wired remote controller
76 Select mode No. 02 (room temperature detection position). Select setting No. 03 (remote controller fixed). (Use and .) Enter the setting. (Press .) Finished End function display. (Press and at the same time.) Example:Selecting room temperaturedetection position YES YES NO NO Selecting functions u...
Page 79 - 3-2. FUNCTION SELECTION OF REMOTE CONTROLLER
79 13-2. FUNCTION SELECTION OF REMOTE CONTROLLER The setting of the following remote controller functions can be changed using the remote controller function selection mode.Change the setting when needed. Item 1 1.Change language("CHANGE LANGUAGE")2.Function limit("FUNCTION SELECTION"...
Page 81 - Press the
81 13-3. Function selection of wireless remote controllerTEMPERATURE DISPLAY - C/ - F SETTING (Change of temp mode from - F to - C) 1 Press the set button with something sharp at the end. MODEL SELECT blinks. 2 Press the AUTO START button. “F:” blinks. 3 Press the button. “C:” blinks. 4 Press the se...
Page 82 - MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER
82 14-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] (1) (2) (3) (4) (5) (6) (7) (1) Press the TEST button for 3 seconds so that [Maintenance mode] appears on the screen (at ). (2) Press the CHECK button for 3 seconds to switch to [Maintenance monitor]. ...
Page 92 - Removing the service panel and top panel; Photo 1; DISASSEMBLY PROCEDURE
92 OPERATING PROCEDURE PHOTOS & ILLUSTRATION PUZ-HA30NHA PUZ-HA36NHA PUZ-HA30NHA2 PUZ-HA36NHA2 1. Removing the service panel and top panel (1) Remove 3 service panel fixing screws (5 × 10) and slide the hook on the right downward to remove the service panel. (2) Remove screws (3 for front, 3 for...
Page 93 - Photo 4
93 OPERATING PROCEDURE PHOTOS Photo 4 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) and thermistor <Outdoor>(TH7) (1) Remove the service panel. (See Figure 1.)(2) Remove the top panel. (See Figure 1.)(3) Disconnect the connectors TH7/6 (red) on the controller circuit board in t...
Page 94 - Photo 9
94 OPERATING PROCEDURE PHOTOS 7. Removing the 4-way valve coil (21S4), and linear expansion valve coil (LEV-A, LEV-B, LEV-C) (1) Remove the service panel. (See Figure 1.) (2) Remove the top panel. (See Figure 1.) [Removing the 4-way valve coil] (3) Remove 4-way valve coil fixing screw (M4 × 6). (4) ...
Page 95 - rear of the unit and remove the right side panel.; Note 1: Recover refrigerant without spreading it in the; remove the capacitor.
95 OPERATING PROCEDURE PHOTOS 11. Removing bypass valve coil (SV) and bypass valve (1) Remove the service panel. (See Figure 1.)(2) Remove the top panel. (See Figure 1.)(3) Remove 3 right side panel fixing screws (5 × 10) in the rear of the unit and remove the right side panel. (4) Remove the bypass...
Page 96 - Note: Recover refrigerant without spreading it in the air.
OPERATING PROCEDURE PHOTOS 13. Removing the compressor (MC) (1) Remove the service panel. (See Figure 1.)(2) Remove the top panel. (See Figure 1.)(3) Remove 2 front cover panel fixing screws (5 × 10) and remove the front cover panel. (See Photo 3.) (4) Remove 2 back cover panel fixing screws (5 × 10...
