Page 2 - FEATURES; Indoor unit; Ceiling Concealed; Remote controller; Outdoor unit; TOTALLYINVISIBLE INDOOR UNIT BEHIND THE CEILING; ) Self-diagnostic feature indicates faults instantly
2 1 FEATURES Indoor unit Ceiling Concealed Series PEH Remote controller FILTER CHECK MODE TEST RUN Outdoor unit 1. TOTALLYINVISIBLE INDOOR UNIT BEHIND THE CEILING The totally hidden indoor unit that lies above the ceiling surface enables you to utilize full floor space while allowing for flex-ible i...
Page 3 - PART NAMES AND FUNCTIONS; INNOVATIVE MICROPROCESSOR CONTROL SYSTEM
3 PART NAMES AND FUNCTIONS 2 ● Indoor (Main) Unit Air intake duct flange Air outlet duct flange Air outlet Air intake(sucks the air inside the room into the unit) (2) Non- polar two-wire remote controller cable The slim, non-polar, two-wire remote controller cable makes installation simple and troub...
Page 4 - Operation buttons; Once the operation of the unit is; Setting range
4 ● Remote controller ● Operation buttons ● Once the operation of the unit is set, subsequent operations canonly be performed by pressingthe ON/OFF button repeately. FILTER CHECK MODE TEST RUN 050 w w button This switches betweencontinuous operation andthe timer operation. q q button This sets of sw...
Page 5 - Caution; Display
5 FILTER CHECK MODE TEST RUN 050 Caution ● Only the display lights when the unit is stopped and power supplied to the unit. ● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a malfunction. ● When the central control remote control u...
Page 6 - SPECIFICATIONS; REFRIGERANT
6 3 SPECIFICATIONS w 1 Rating condition <JIS B 8616> (INDOOR) Cooling : 27 : D.B.,19 : W.B. Heating : 20 : D.B. (OUTDOOR) Cooling : 35 : D.B. Heating : 7 : D.B.,6 : W.B. w 2 Noise level : Sound pressure level PEH-2.5EKHA 2 .TH PEH-3EKHA 2 .TH Cooling 21,800 6,400 2.85 Cooling 26,300 7,700 3.54...
Page 8 - DATA; PERFORMANCE DATA; Cooling capacity correction factors; Indoor
8 4 DATA 1 PERFORMANCE DATA 1) COOLING CAPACITY Note CA : Capacity (W) P.C. : Power consumption (kW) Cooling capacity correction factors P.C. CA 6,457 6,875 7,297 7,724 7,768 8,271 8,779 9,293 9,786 10,419 11,060 11,707 12,510 13,319 14,138 14,965 2.28 2.33 2.37 2.42 2.84 2.89 2.95 3.00 2.92 2.98 3....
Page 9 - Heating capacity correction factors
9 2) HEATING CAPACITY Note CA :Capacity (W) P.C. :Power consumption (kW) Heating capacity correction factors P.C. CA 4,588 4,393 4,222 5,684 5,443 5,230 7,122 6,820 6,554 8,903 8,524 8,192 1.79 1.93 2.04 2.27 2.45 2.60 2.48 2.67 2.83 3.28 3.54 3.75 15 20 25 15 20 25 15 20 25 15 20 25 -10 P.C. CA 5,2...
Page 11 - FAN PERFORMANCE AND CORRECTED AIR FLOW
11 Air flow (CMM) Recommended range 200 150 100 50 Hi Lo 0 20 15 17 25 30 35 External static pressure(Pa) (1Pa = 0.1mmAq) Fan Performance Air flow (CMM) Recommended range 200 150 100 50 Hi Lo 0 30 23 20 25 35 40 External static pressure(Pa) (1Pa = 0.1mmAq) Fan Performance Air flow (CMM) Recommended ...
Page 13 - Indoor unit Service Ref.; STANDARD OPERATION DATA
13 V A V A Service Ref. T otal Electrical circuit Electrical circuit Indoor side Outdoor side W kW MPa·G ( O f/ F ·G) MPa·G ( O f/ F ·G) : : : m D.B. : W.B. : D.B. : D.B. : W.B. : Mode Capacity Input Indoor unit Service Ref. Phase, Hz Volts Amperes Outdoor unit Service Ref. Phase, Hz Volts Amperes D...
Page 14 - OUTLINES AND DIMENSIONS
14 1. INDOOR UNITS PEH-2.5EKHA 2 .TH PEH-3EKHA 2 .TH 11 11 105 35 70 44 508 457 25.5 50 59 75 (3) 35 286 171 3.2 (2 3/8) 60 265(10 1/2) 40 155 155 155 20 (13/16) 10(3/8) 600(24) 100 70 300 900(36) 145 24.5 145 22.5 20 672(26 1/2) (4 3/16) (13/16) 510(20 1/8) 710(27 15/16) 339(13 3/8) 418(16 1/2) (11...
Page 18 - WIRING DIAGRAM
18 PEH-2.5/3/4/5EKH(S)A 2 .TH 1. Since the indoor transformer (T) is connected with 240V power, if 220, 230V power is used. Change the wiring connection showing fig : W 1. when power supply is fig : W 1 2. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric w...
Page 19 - PUH-3 YKA; REFRIGERANT SYSTEM DIAGRAM
19 PEH-2.5EKHA 2 .TH/PUH-2.5 VKA 2 (.UK) PEH-3EKHA 2 .TH/PUH-3 VKA 2 (.UK) PUH-3 YKA 2 (.UK) Outdoor unit Outdoor unit Outdoor unit Indoorheatexchanger ThermistorTH2 Distributorwith strainer Capillary tube Capillarytube Restrictor valve Restrictorvalve Strainer Strainer Strainer 4-way valve Oil sepa...
Page 20 - MAIN OPERATION
20 START Power circuit breaker Check SW ON twice Operation SW ON “OFF” timer “ON” timer STOP Set time complete Set time complete 1 NO NO NO NO NO NO NO NO NO NO NO NO YES w 1 YES YES YES YES YES YES YES YES YES YES YES PROTECTION DEVICE SELF HOLD RELEASE Remote controller indicator lamp OFF Trouble ...
Page 22 - DRYOPERATION
22 w 11 Refer to page 26~27. w 12 When room temperature is 18 : or below, the compressor cannot operate. When room temperature rises over 18 : , the compressor starts after a 3-minute time delay. w 13 Compressor ON time is decided by room temperature. Refer to page 26~27. w 14 In dry operation, comp...
Page 23 - HEATING OPERATION; 5 ( i ) Until Low airflow is set while in hot adjustment
23 Heat operation Defrpsting Heating area Defrost release Defrost 30 min. elapse Outdoor unit trouble Four-way valve ON Hor adjust in process Compressor ON Compressor thermostat ON Allowance cancel Indoor piping -15 ° C or lower Outdoor unit trouble FAN SPEED Very low airflow Compressor OFF 1 3 min....
Page 24 - OUTLINE OF MICROPROCESSOR CONTROL; OUTPUT to indoor unit; Remote controller board; OUTPUT to remore controller; Indoor controller board; OUTPUT; MICROPROCESSOR CONTROL
24 ● Compressor and outdoor fan : ON-OFF ● Operation mode change :COOL-HEAT. 1.OUTLINE OF MICROPROCESSOR CONTROL ● OFF-ON switching. ● COOL/DRY-AUTO-HEAT selector switching. ● Thermostat setting. ● TIMER mode selector-switching and Timer setting. ● HIGH-LOW fan speed switching. ● TEST RUN switching....
Page 25 - INDOOR UNIT CONTROL; NOTE: Set temperature changes 1°C when the
25 2. INDOOR UNIT CONTROL 2-1COOL operation (1) Compressor control 1 3-minute time delay To prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs when room temperature is higher than set temperature. The compressor stops when room temperature is equal to ...
Page 26 - NOTE: The set temperature changes 1°C when the
26 <DRYoperation time chart> Minimum 3 minutes w 1 ON Thermostat Indoor fan Booster heater Compressor ON Low speed LOW speed ON ON OFF OFF OFF OFF OFF Operation starts byP O W E R b u t t o nON. Operation stops byP O W E R b u t t o nOFF. Room temperaturebecomes equal toset temperature. Room t...
Page 27 - (3) Detecting abnormalities in the outdoor unit
27 4 The compressor will not start when the room temperature is below 18°C. The compressor starts intermittent operation when the power is turned ON with room temperature above 18°C. The com-pressor ON/OFF time depends on the thermostat ON/OFF and the following room temperatures.After 3-minute compr...
Page 29 - (4) Detecting abnormalities in the outdoor unit
29 (1) Compressor control 1 3-minute time delay To prevent overload, the compressor will not start within 3, minutes after stop. 2 The compressor runs when the room temperature is lower than the set temperature. The compressor stops when the room temperature is equal to or higher than the set temper...
Page 30 - (5) Indoor coil thermistor abnormality detection; RANGE A
30 (5) Indoor coil thermistor abnormality detection An abnormality can be detected during compressor ON, except for the following. ● For the first 20 minutes after the temperature difference between the indoor coil temperature and room temperature enters the RANGE C. ● When the temperature differenc...
Page 33 - -8 Emergency operation; Code
33 (1) Indoor coil temperature code During the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of roomtemperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEAToperation. (2) Trouble during t...
Page 34 - NOTE: For further information, refer to the; When the LOSSNAY control switch is not used:
34 2-9 Interlock with ventilation system (LOSSNAY)Mr. SLIM/LOSSNAY interlock operation is available by using the optional parts listed below. (1) System organization NOTE: For further information, refer to the LOSSNAY technical & service manual. (2) LOSSNAY models connectable to Mr. SLIM are: LG...
Page 35 - -10 Dip switch functions
2-10 Dip switch functions Each figure shows the initial factory setting. 1 On remote controller board(1) SW17(Address selector) SW17-1~6) For address settingSW17-7) When two remote controllers are used,this switch sets the controller function. OFF:The remote controller is set as a main controller.ON...
Page 37 - OUTDOOR UNIT CONTROL; -3 Protective functions; The protective function is memorized.
37 10 minutes w 1 ON Thermostat Outdoor fan 4-way valve( C O O L ) 4-way valve(HEAT) Bypass valve Compressor Crankcase heater (with jumper wire J3) Crankcase heater (without jumper wire J3) ON ON ON ON OFF OFF OFF OFF OFF ON OFF ON OFF ON OFF 60 minutes 60 minutes 60 minutes 60 minutes 60 minutes 3 ...
Page 40 - (3) Function of switches on the outdoor controller board
40 3-7 Service functions(1) Compulsory defrosting 1 When all of the following conditions are satisfied, pressing SW2 starts the compulsory defrosting. ● During HEAT mode ● The compressor is ON. ● The outdoor coil temperature is being displayed by LED. (Outdoor controller board dip switch SW3-1 : OFF...
Page 41 - TROUBLES IN TEST RUN; TROUBLESHOOTING
41 Symptom Cause Check points The display “CENTRALLYCONTROLLED” on remotecontroller dose not disap-pear. 1) Wrong address setting of remote con- troller/indoor controller board. 2) Timer adapter is connected to the remote controller. 3) Singnal transmission error between indoor unit and remote contr...
Page 42 - SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER; -1 When malfunction occurs during operation
42 2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER 2-1 When malfunction occurs during operation When a malfunction occurs, the indoor and outdoor units stop and the malfunction is displayed on the LCD of the remote con-troller.(1) ON the set temperature display part, “CHECK” appears, and the unit...
Page 45 - mode the indication changes to output state indication.
45 3-1 Outdoor coil temperature To obtain data on the outdoor coil temperature, add the number of bits of lighting LEDs, and see the graph below to findthe temperature. 3-2 Fan output step To obtain data on the fan output step, add the number of bits of lighting LEDs, and see the graph below to find...
Page 47 - WRONG WIRING ON SITE; -1 Between remote controller and indoor unit; Wrong wiring; Phenomenon
47 6. WRONG WIRING ON SITE 6-1 Between remote controller and indoor unit If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controllerwhen the POWER button is pressed. The beep sound will also not be heard. 6-2 Phenomenon due to wrong wi...
Page 48 - OTHER TROUBLES AND CAUSES; “CENTRALLY CONTROLLED” is displayed.
48 LOSSNAY control switch does not work. LOSSNAY control switch can not work during interlock opera-tion.LOSSNAY control switch is effective only while Mr. SLIM is notoperating. Symptom LOSSNAY air speed can not be controlled in interlock opera-tion. LOSSNAY fan speed is fixed to HIGH during interlo...
Page 49 - DISASSEMBLY PROCEDURE; Removing the indoor coil thermistor
49 2. Removing the electrical parts (1) Remove the 2 screws and the electrical parts cover. (See Photo 2.) ● Indoor controller board ● Transformer ● Run capacitor ● Fuse (1A, 2A, 5A) ● Surge absorber ● Terminal block ● Thermistor (for indoor temperature) (See Photo 3.) 1. Removing the drain pan (1) ...
Page 50 - Removing the heater
50 4. Removing the fan Note : Perform the following with the indoor unit lowered down to the floor. (1) Remove the drain pan. (See Photo 1.) (2) Disconnect the connector for the fan motor. (See Photo 3.) (3) Take out the fan assembly after removing the 7 set screws of the fan plate. (See Photo 5 or ...
Page 51 - PARTS LIST
51 PARTS LIST 12 No. Part No. Part name Specification Remarks Unit Amount Wiring Diagram Symbol Recom- mended Q'ty Q'ty/set PEH-2.5 PEH-3 Price 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 INDOOR FAN MOTOR CASING BELL MOUTH SIROCCO FAN LEG FAN PLATE CABINET ASSY AIR OUTLET DUCT FLANGE AIR INTAKE DUC...
Page 55 - OPTIONAL PARTS; -2 Feature of program timer
55 OPTIONAL PARTS 13 1. REFRIGERANT PIPES Service Ref. : PEH-2.5EKHA 2 .TH,PEH-3EKHA 2 .TH Service Ref .: PEH-4EKHSA 2 .TH,PEH-5EKHSA 2 .TH 2-2 Feature of program timer ! Daily timer function Daily timer can be set in 30 minutes units for up to 24 hours. Each unit can be set for unit ON, unit OFF, o...
Page 56 - ORN
56 SET/MONITOR SET S M T W T F S MONITOR PROERAN TIMER PAC-SC32PTA TODAY ON WEEKLY SETTING OFF ON SET BACK OFF CLOCK DAILY TIMER SET BACK SET BACK DAILY SETTING 12 15 18 21 24 0 3 6 12 15 2-3. How to connect program timer 2-4. Names and functions <PAC-SC32PT> WEEKLY TIMER SETTING DISPLAY Used ...
Page 57 - MULTIPLE REMOTE CONTROLLER ADAPTER; BACK
57 "ENGAGED" indicatorWhen this indicator is lit, transmission is inprogress and all switches are inoperative. DUAL/CENTRAL switchThis change-over switch governs the oper-ation of the accessory remote controller. "DUAL"Instructions from both the accessoryremote controller and the cen...
Page 59 - PROGRAM TIMER ADAPTER; -2 Connection method; ADAPTER ·························1P; Connections in the adapter box
59 6. PROGRAM TIMER ADAPTER This adapter is needed when a program timer(PAC-SK65PT)or a centralized remote controller(PAC-805RC)is used. 6-2 Connection method Connection and wiring methods differ with the type of the indoor unit used. Confirm the type before carrying out the work. 6-1 Parts included...
Page 60 - holes; OPTIONAL REMOTE CONTROLLER; This is for the control using two remote controllers.
HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100 TELEX J24532 CABLE MELCO TOKYO Issued in Sep. 1997. NO. OC153 560Printed in Japan © Copyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. New publication, effective Sep. 1997Specifications subject to change without notice To program timer orcen...
