CN DC Inverter Series
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1 CN DC Inverter Series Indoor Units Outdoor Units CN 25 DCI DCI 25 CN 35 DCI DCI 35 CN 50 DCI DCI 50 CN 60 DCI DCI 60 CN 70 DCI DCI 72Z REFRIGERANT R410A HEAT PUMP AUGUST 2008
2 LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES Note: Changes in the pages are indicated by a Revision# in the footer of each effected page (when none indicates no changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters. Dates of issue for original and changed pages are: Original December 2007 Total number of pages in this publication is 111 consisting of the following: Page No. Revision No. # Page No. Revision No. # Page No. Revision No. # Title...1 A...1 i Zero in this column indicates an original page. *Due to constant improvements please note that the data on this service manual can be modified with out notice. **Photos are not contractual A SM CN 1- A.1 GB
3 TABLE OF CONTENTS Table of Contents 1. INTRODUCTION PRODUCT DATA SHEET RATING CONDITIONS OUTLINE DIMENSIONS PERFORMANCE DATA & PRESSURE CURVES SOUND LEVEL CHARACTERISTICS ELECTRICAL DATA WIRING DIAGRAMS REFRIGERATION DIAGRAMS TUBING CONNECTIONS CONTROL SYSTEM TROUBLESHOOTING EXPLODED VIEWS AND SPARE PARTS LISTS APPENDIX A i
4 INTRODUCTION 1. INTRODUCTION 1.1 General The CN DCI Inverter Cassette type split air conditioner range comprise RC (heat pump) models, as follows: CN 25 CN 35 CN 50 CN 60 CN Main Features The CN DCI series benefits from the most advanced technological innovations, namely: DC inverter technology. R410A refrigerant. High COP. Precharged refrigerant. Low Sound level for both Indoor and Outdoor. 60 x60 cm dimension designed for integration in suspended ceilings. DC Brushless fan motor. New grille, modern style with elegant lines in line with every interior decor, 2 panels optional available (hard ceiling / Suspended ceiling). Motorized air distribution flaps. Very slim profile 219 mm at size 9-12, and 270 mm at size Option of fresh air intake, and air distribution to adjacent room. Integrated condensate pump with a lift of 1 m Max. Connection to Multisplit outdoor units. Up to 30 m pipe length between indoor and outdoor units. Up to 15 m vertical high between indoor and outdoor units. Cooling operation at outdoor temperature down to -10 C. Heating operation at outdoor temperature down to -15 C. Built in over-flow protection against the condensate water. Easy installation and service. Product can have the option of additional function of Ionizer and ESF. Fan speed can be adjusted by compensation on PCB according to different installation height (Field option). 1-1
5 INTRODUCTION 1.3 Indoor Unit The indoor unit is cassette type indoor unit, and can be easily fitted to many types of residential and commercials applications. It includes: Coil with hydrophilic aluminum fins. Motorized flaps (two step motors). Advanced electronic control box assembly (DCI storm). Low sound level of the indoor fan. 1.4 Filtration 1.5 Control The CN series presents several types of air filters: Easily accessible, and re-usable pre-filters. Easily Static Filter (Field Option). The microprocessor indoor controller, and an infrared remote control, supplied as standard, providing complete operating function and programming. For further details please refer to the Operation Manual, Appendix A. 1.6 Outdoor Unit The CN outdoor units can be installed as floor or wall mounted units by using a wall supporting bracnet. The metal sheets are protected by anti- corrosion paint work allowing long life resistance. All outdoor units are pre-charged. For further information please refer to the Product Data Sheet, Chapter 2. It includes: Compressor mounted in a soundproofed compartment: Single Rotary for DCI 25 and DCI 35. Scroll for DCI 50 and DCI 60. Twin Rotary for DCI 72Z. Axial fan. Outdoor coil with hydrophilic louver fins for RC units. Outlet air fan grill. Service valves flare type connection. Interconnecting wiring terminal blocn. 1-2
6 INTRODUCTION 1.7 Tubing Connections Flare type interconnecting tubing to be produced on site. For further details please refer to the Installation Manual, Chapter Accessories Remote Control. Panel 625x625 for gird ceiling. Panel 725x725 for hard ceiling. ESF & Ionizer kit. 1.9 Inbox Documentation Each unit is supplied with its own installation and operation manuals Matching Table R410A OUTDOOR UNITS INDOOR UNITS MODEL REFRIGER. CN 25 CN 35 CN 50 CN 60 CN 70 DCI25/35/50 R410A DCI 60 R410A DCI 72Z R410A The above table lists outdoor units and PXD DCI indoor units which can be matched together. In addition the listed outdoor units can be matched with other types of indoor units such as cassettes and wall mounted. For further information please refer to the relevant Service Manual. 1-3
7 PRODUCT DATA SHEET 2. PRODUCT DATA SHEET 2.1 CN 25 DCI R410A Model Indoor Unit CN25 DCI Model Outdoor Unit DCI 25 R410A Installation Method of Pipe Flared Characteristics Units Cooling Heating Capacity (4) Btu/hr 8550( ) 10900( ) kw 2.5( ) 3.2( ) Power input (4) kw 0.59( ) 0.8( ) EER (Cooling) or COP(Heating) (4) W/W Energy efficiency class A A Power supply V/Ph/Hz V/Single/50Hz Rated current A Starting current A 10.5 Circuit breaker rating A 15 Fan type & quantity Centrifugal x 1 Fan speeds H/M/L RPM 550/450/ /500/400 Air flow (1) H/M/L m3/hr External static pressure Min-Max Pa 0 Sound power level (2) H/M/L db(a) Sound pressure level (3) H/M/L db(a) 32/26 32/26 Moisture removal l/hr 0.7 Condensate drain tube I.D mm 20 Dimensions WxHxD mm 575X575X219 Weight kg 13(2.2/2.8) PaCNage dimensions WxHxD mm 681X681X297 PaCNaged weight kg 15 Units per pallet units 12 StaCNing height units 6 levels Refrigerant control Electronical Expansion Valve Compressor type, model Single Rotary DC Inverter, Panasonic 5RS102XAB Fan type & quantity Propeller x 1 Fan speeds H/L RPM 830 Air flow H/L m3/hr 1780 Sound power level H/L db(a) Sound pressure level (3) H/L db(a) Dimensions WxHxD mm 795*290*610 Weight kg 38 PaCNage dimensions WxHxD mm 945*395*655 PaCNaged weight kg 42 Units per pallet Units 9 StaCNing height units 3 levels Refrigerant type R410A Refrigerant chargless distance kg/m 1.1kg/7.5m Additional charge g/m No need Liquid line In.(mm) 1/4"(6.35) Connections Suction line In.(mm) 3/8"(9.53) between units Max.tubing length m. Max.25 Max.height difference m. Max.10 Operation control type Remote control Heating elements kw NA INDOOR OUTDOOR (1) Rating conditions in accordance with ISO 5151 and ISO (for ducted units) and EN (2) Airflow in ducted units; at nominal external static pressure. (3) Sound power in ducted units is measured at air discharge. (4) Sound pressure level measured at 1 meter distance from unit. 2-1
8 PRODUCT DATA SHEET 2.2 CN 35 DCI R410A Model Indoor Unit CN35 DCI Model Outdoor Unit DCI 35 R410A Installation Method of Pipe Flared Characteristics Units Cooling Heating Capacity (4) Btu/hr 11950( ) 14350( ) kw 3.5( ) 4.2( ) Power input (4) kw 0.96( ) 1.16( ) EER (Cooling) or COP(Heating) (4) W/W Energy efficiency class A A Power supply V/Ph/Hz V/Single/50Hz Rated current A Starting current A 10.5 Circuit breaker rating A 15 Fan type & quantity Centrifugal x 1 Fan speeds H/M/L RPM 600/500/ /550/450 Air flow (1) H/M/L m3/hr External static pressure Min-Max Pa 0 Sound power level (2) H/M/L db(a) Sound pressure level (3) H/M/L db(a) 34/28 34/28 Moisture removal l/hr 1.38 Condensate drain tube I.D mm 20 Dimensions WxHxD mm 575X575X219 Weight kg 13 PaCNage dimensions WxHxD mm 681X681X297 PaCNaged weight kg 15 Units per pallet units 12 StaCNing height units 6 levels Refrigerant control Electronical Expansion Valve Compressor type, model Single Rotary DC Inverter, Panasonic 5RS102XAB Fan type & quantity Propeller x 1 Fan speeds H/L RPM 830 Air flow H/L m3/hr 1780 Sound power level H/L db(a) Sound pressure level (3) H/L db(a) Dimensions WxHxD mm 795*290*610 Weight kg 38.5 PaCNage dimensions WxHxD mm 945*395*655 PaCNaged weight kg 42.5 Units per pallet Units 9 StaCNing height units 3 levels Refrigerant type R410A Refrigerant chargless distance kg/m 1.2kg/7.5m Additional charge g/m No need INDOOR OUTDOOR Connections between units Liquid line In.(mm) 1/4"(6.35) Suction line In.(mm) 3/8"(9.53) Max.tubing length m. Max.25 Max.height difference m. Max.10 Remote control Operation control type Heating elements kw NA (1) Rating conditions in accordance with ISO 5151 and ISO (for ducted units) and EN (2) Airflow in ducted units; at nominal external static pressure. (3) Sound power in ducted units is measured at air discharge. (4) Sound pressure level measured at 1 meter distance from unit. 2-2
9 PRODUCT DATA SHEET 2.3 CN 50 DCI R410A Model Indoor Unit CN-50 DCI Model Outdoor Unit DCI 50 R410A Installation Method of Pipe Flared Characteristics Units Cooling Heating Capacity (4) Btu/hr 17050( ) 19100( ) kw 5.0( ) 5.6( ) Power input (4) kw 1.56( ) 1.55( ) EER (Cooling) or COP(Heating) (4) W/W Energy efficiency class A A Power supply V/Ph/Hz V/Single/50Hz Rated current A Starting current A 10.5 Circuit breaker rating A 20 Fan type & quantity Centrifugal x 1 Fan speeds H/M/L RPM 750/650/ /650/550 Air flow (1) H/M/L m3/hr External static pressure Min-Max Pa 0 Sound power level (2) H/M/L db(a) Sound pressure level (3) H/M/L db(a) 38/30 38/30 Moisture removal l/hr 2.07 Condenstate drain tube I.D mm 20 Dimensions WxHxD mm 575*575*270 Weight kg??? PaCNage dimensions WxHxD mm 575X575X270 PaCNaged weight kg 15.2 Units per pallet units 681X681X348 StaCNing height units 17.7 Refrigerant control Electronical Expansion Valve Compressor type,model Single Rotary DC Inverter,Panasonic 5RS130XCC03 Fan type & quantity Propeller x 1 Fan speeds H/L RPM 920 Air flow H/L m3/hr 2160 Sound power level H/L db(a) Sound pressure level (3) H/L db(a) Dimensions WxHxD mm 795*290*610 Weight kg 39 PaCNage dimensions WxHxD mm 945*395*655 PaCNaged weight kg 43 Units per pallet Units 9 StaCNing height units 3 levels Refrigerant type R410A Refrigerant chargless distance kg/m 1.5kg/7.5m Additional charge g/m No need INDOOR OUTDOOR Connections between units Operation control type Heating elements Liquid line In.(mm) 1/4"(6.35) Suction line In.(mm) 1/2"(12.7) Max.tubing length m. Max.30 Max.height difference m. Max.10 Remote control kw (1) Rating conditions in accordance with ISO 5151 and ISO (for ducted units) and EN (2) Airflow in ducted units; at nominal external static pressure. (3) Sound power in ducted units is measured at air discharge. (4) Sound pressure level measured at 1 meter distance from unit. 2-3
10 PRODUCT DATA SHEET 2.4 CN 60 DCI R410A Model Indoor Unit CN 60 DCI Model Outdoor Unit DCI 60 R410A Installation Method of Pipe Flared Characteristics Units Cooling Heating Capacity (4) Btu/hr 19800(4800~22200) 23200(6800~27300) kw 5.8( ) 6.8(2.0~8.0) Power input (4) kw 1.92( ) 2.11(0.52~2.60) EER (Cooling) or COP(Heating) (4) W/W Energy efficiency class B C Power supply V/Ph/Hz V/Single/50Hz Rated current A Starting current A 15 Circuit breaker rating A 20 Fan type & quantity Centrifugal x 1 Fan speeds H/M/L RPM 800/7100/ /700/600 Air flow (1) H/M/L m3/hr External static pressure Min-Max Pa 0 Sound power level (2) H/M/L db(a) Sound pressure level (3) H/M/L db(a) 41/33 41/33 Moisture removal l/hr 2.62 Condenstate drain tube I.D mm 20 Dimensions WxHxD mm 575X575X270 Weight kg 15.2 PaCNage dimensions WxHxD mm 681X681X348 PaCNaged weight kg 17.7 Units per pallet units 12 StaCNing height units 6 levels Refrigerant control EEV Compressor type,model E-Scroll MATSUSHITA 5CS130XCC03 Fan type & quantity Propeller(direct) x 1 Fan speeds H/L RPM 820 Air flow H/L m3/hr 2860 Sound power level H/L db(a) 65 Sound pressure level (3) H/L db(a) 55 Dimensions WxHxD mm 846x690x302 Weight kg 46 PaCNage dimensions WxHxD mm 990x770x430 PaCNaged weight kg 50 Units per pallet Units 9 StaCNing height units 3 levels Refrigerant type R410A Refrigerant chargless distance kg/m 1.65kg/7.5m Additional charge per 1 meter g/m No Need INDOOR OUTDOOR Connections between units Operation control type Heating elements (Option) Liquid line In.(mm) 1/4"(6.35) Suction line In.(mm) 1/2"(12.7) Max.tubing length m. Max.30 Max.height difference m. Max.15 Remote control kw (1) Rating conditions in accordance with ISO 5151 and ISO (for ducted units) and EN (2) Airflow in ducted units; at nominal external static pressure. (3) Sound power in ducted units is measured at air discharge. (4) Sound pressure level measured at 1 meter distance from unit. 2-4
11 PRODUCT DATA SHEET 2.5 CN 72(Z) DCI R410A Model Indoor Unit CN70 DCI Model Outdoor Unit DCI 72Z R410A Installation Method of Pipe Flared Characteristics Units Cooling Heating Capacity (4) Btu/hr 23200(5110~25570) 24890(5110~28640) kw 6.8( ) 7.3(1.5~9.0) Power input (4) kw 2.41( ) 2.27(0.5~2.92) EER (Cooling) or COP(Heating) (4) W/W Energy efficiency class C C Power supply V/Ph/Hz V/Single/50Hz Rated current A Starting current A 15 Circuit breaker rating A 20 Fan type & quantity Centifugal x 1 Fan speeds H/M/L RPM 850/750/ /750/650 Air flow (1) H/M/L m3/hr External static pressure Min-Max Pa 0 Sound power level (2) H/M/L db(a) Sound pressure level (3) H/M/L db(a) 43/35 43/35 Moisture removal l/hr 2.66 Condenstate drain tube I.D mm 20 Dimensions WxDxH mm 575X575X270 Weight( kg 15.5 PaCNage dimensions WxDxH mm 681X681X348 PaCNaged weight kg 18 Units per pallet units 12 StaCNing height units 6 levels Refrigerant control EEV Compressor type,model Two Rotary,Mitsubishi TNB220F Fan type & quantity Propeller(direct) x 1 Fan speeds H/L RPM 850 Air flow H/L m3/hr 3350 Sound power level H/L db(a) 65 Sound pressure level (3) H/L db(a) 55 Dimensions WxHxD mm 950x412x835 Weight kg 65 PaCNage dimensions WxHxD mm 1080x477x910 PaCNaged weight kg 70 Units per pallet Units 9 StaCNing height units 3 levels Refrigerant type R410A Refrigerant chargless distance kg/m 2.045kg/7.5m Additional charge per 1 meter g/m No Need INDOOR OUTDOOR Connections between units Operation control type Heating elements (Option) Liquid line In.(mm) 3/8"(9.53) Suction line In.(mm) 5/8"(15.88) Max.tubing length m. Max.30 Max.height difference m. Max.15 Remote control kw (1) Rating conditions in accordance with ISO 5151 and ISO (for ducted units) and EN (2) Airflow in ducted units; at nominal external static pressure. (3) Sound power in ducted units is measured at air discharge. (4) Sound pressure level measured at 1 meter distance from unit. 2-5
12 PRODUCT DATA SHEET 2.6 Optional accessory Panel 625x625(Optional accessory) For all the models Dimensions (H x L x D) mm 625x625x40 Weight kg 2.2 PaCNage Dimensions (H x L x D) mm 700x700x103 PaCNage Weight kg 3.4 Units per pallet units 20 StaCNing height units 10 levels Panel 725x725(Optional accessory) For all the models Dimensions (H x L x D) mm 725x725x40 Weight kg 2.7 PaCNage Dimensions (H x L x D) mm 800x800x103 PaCNage Weight kg 4.2 Units per pallet units 10 StaCNing height units 10 levels 2-6
13 RATING CONDITIONS 3. RATING CONDITIONS Standard conditions in accordance with ISO 5151, ISO (for ducted units) and EN Cooling: Indoor: 27 o C DB 19 o C WB Outdoor: 35 o C DB Heating: Indoor: 20 o C DB Outdoor: 7 o C DB 6 o C WB 3.1 Operating Limits R410A DCI (Excluding Delta Units) Cooling Heating Voltage Indoor Outdoor Upper limit 32 o C DB 23 o C WB 46 o C DB Lower limit 21 o C DB 15 o C WB -10 o C DB Upper limit 27 o C DB 24 o C DB 18 o C WB Lower limit 10 o C DB -15 o C DB -16 o C WB 1PH V 3PH N/A 3-1
14 OUTLINE DIMENSIONS 4. OUTLINE DIMENSIONS 4.1 Indoor Unit: CN 25, 35, 50, 60, 70 R410A DCI Unit Model Main unit (A) Insulation (B) Front Step (C) Front width (D) Front height (E) Unit Body Width (W) Effective Height (H) 25/ / /60/ /
15 OUTLINE DIMENSIONS 4.2 Outdoor Unit: DCI Outdoor Unit: DCI
16 OUTLINE DIMENSIONS 4.4 Outdoor Unit: DCI 72Z 4-3
17 PERFORMANCE DATA & PRESSURE CURVES 5. PERFORMANCE DATA 5,1 CN 25 DCI Cooling Capacity (kw) Run Mode [230V] : Indoor Fan at High Speed. OD COIL ENTERING AIR DB TEMPERATURE [ 0 C] (protection range) ID COIL ENTERING AIR DB/WB TEMPERATURE [C 0 ] DATA 22/15 24/17 27/19 29/21 32/23 TC % of nominal SC % of nominal PI % of nominal TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI LEGEND TC Total Cooling Capacity, kw SC Sensible Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Capacity Ratio Cooling Capacity Ratio Vs. Outdoor Temperature Outdoor Temperature [ºC] 5-1
18 PERFORMANCE DATA & PRESSURE CURVES Heating Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. OD COIL ENTERING AIR DB/WB TEMPERATURE [ 0 C] ID COIL ENTERING AIR DB TEMPERATURE [C 0 ] DATA /-16 TC PI /-12 TC PI /-8 TC PI /-2 TC PI /1 TC PI /6 TC PI /9 TC PI /12 TC PI TC % of nominal (Protection Range) PI % of nominal LEGEND TC Total Heating Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Heating Capacity Ratio Vs. Outdoor Temperature Capacity Ration Outdoor WB Temperature [deg C] 5-2
19 PERFORMANCE DATA & PRESSURE CURVES Model: CN 25 DCI Cooling - Test Mode Suction Pressure Vs.Outdoor Temp. Suction Pressure [kpa] Outdoor DB Temperature[ºC ] Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 Discharge Pressure [kpa] Discharge Pressure Vs. Outdoor Temp Outdoor DB Temperature[ºC ] Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 5-3
20 PERFORMANCE DATA & PRESSURE CURVES Heating - Test Mode Suction Pressure [kpa] Suction Pressure Vs.Outdoor Temp Outdoor WB Temperature [ºC] Discharge Pressure [kpa] Discharge Pressure Vs. Outdoor Temp Outdoor WB Temperature [ºC] Indoor DB
21 PERFORMANCE DATA & PRESSURE CURVES 5.2 CN 35 DCI Cooling Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. OD COIL ENTERING AIR DB TEMPERATURE [ 0 C] (protection range) ID COIL ENTERING AIR DB/WB TEMPERATURE [C 0 ] DATA 22/15 24/17 27/19 29/21 32/23 TC % of nominal SC % of nominal PI % of nominal TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI LEGEND TC Total Cooling Capacity, kw SC Sensible Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factor Capacity Ratio Cooling Capacity Ratio Vs. Outdoor Temperature Outdoor Temperature [ºC] 5-5
22 PERFORMANCE DATA & PRESSURE CURVES Heating Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [C 0 ] OD COIL ENTERING AIR DB/WB TEMPERATURE [ 0 C] DATA /-16 TC PI /-12 TC PI /-8 TC PI /-2 TC PI /1 TC PI /6 TC PI /9 TC PI /12 TC PI TC % of nominal (Protection Range) PI % of nominal LEGEND TC Total Heating Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Heating Capacity Ratio Vs. Outdoor Temperature Capacity Ration Outdoor WB Temperature [deg C] 5-6
23 PERFORMANCE DATA & PRESSURE CURVES Model: CN 35 DCI Cooling - Test Mode Suction Pressure [kpa] Suction Pressure VS.Outdoor Temp. Indoor DB/WB 22/15 24/17 27/19 29/21 32/ Outdoor DB Temperature[ºC ] Discharge Pressure [kpa] Discharge Pressure VS. Outdoor Temp Outdoor DB Temperature[ºC ] Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 5-7
24 PERFORMANCE DATA & PRESSURE CURVES Heating - Test Mode Suction Pressure [kpa] Suction Pressure VS.Outdoor Temp Outdoor WB Temperature [ºC] Discharge Pressure [kpa] Discharge Pressure VS. Outdoor Temp Outdoor WB Temperature [ºC] Indoor DB
25 PERFORMANCE DATA & PRESSURE CURVES 5.3 CN 50 DCI Cooling Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. OD COIL ENTERING AIR DB TEMPERATURE [ 0 C] (protection range) ID COIL ENTERING AIR DB/WB TEMPERATURE [C 0 ] DATA 22/15 24/17 27/19 29/21 32/23 TC % of nominal SC % of nominal PI % of nominal TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI LEGEND TC Total Cooling Capacity, kw SC Sensible Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Capacity Ratio Cooling Capacity Ratio Vs. Outdoor Temperature Outdoor Temperature [ºC] 5-9
26 PERFORMANCE DATA & PRESSURE CURVES Heating Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [C 0 ] OD COIL ENTERING AIR DB/WB TEMPERATURE [ 0 C] DATA /-16 TC PI /-12 TC PI /-8 TC PI /-2 TC PI /1 TC PI /6 TC PI /9 TC PI /12 TC PI TC % of nominal (Protection Range) PI % of nominal LEGEND TC Total Heating Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Heating Capacity Ratio Vs. Outdoor Temperature Capacity Ration Outdoor WB Temperature [deg C] 5-10
27 PERFORMANCE DATA & PRESSURE CURVES Model: CN 50 DCI Cooling - Test Mode Suction Pressure [kpa] Suction Pressure VS.Outdoor Temp Outdoor DB Temperature[ºC ] Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 Discharge Pressure [kpa] Discharge Pressure VS. Outdoor Temp Outdoor DB Temperature[ºC ] Indoor DB/WB 22/15 24/17 27/19 29/21 32/
28 PERFORMANCE DATA & PRESSURE CURVES Heating - Test Mode 1100 Suction Pressure VS.Outdoor Temp. Suction Pressure [kpa] Outdoor WB Temperature [ºC] Discharge Pressure VS. Outdoor Temp. Discharge Pressure [kpa] Outdoor WB Temperature [ºC] Indoor DB
29 PERFORMANCE DATA & PRESSURE CURVES 5.4 CN 60 DCI Cooling Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. OD COIL ENTERING AIR DB TEMPERATURE [ 0 C] (protection range) ID COIL ENTERING AIR DB/WB TEMPERATURE [C 0 ] DATA 22/15 24/17 27/19 29/21 32/23 TC % of nominal SC % of nominal PI % of nominal TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI LEGEND TC Total Cooling Capacity, kw SC Sensible Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Capacity Ratio Cooling Capacity Ratio Vs. Outdoor Temperature Outdoor Temperature [ºC] 5-13
30 PERFORMANCE DATA & PRESSURE CURVES Heating Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [C 0 ] OD COIL ENTERING AIR DB/WB TEMPERATURE [ 0 C] DATA /-16 TC PI /-12 TC PI /-8 TC PI /-2 TC PI /1 TC PI /6 TC PI /9 TC PI /12 TC PI TC % of nominal (Protection Range) PI % of nominal LEGEND TC Total Heating Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Heating Capacity Ratio Vs. Outdoor Temperature Capacity Ration Outdoor WB Temperature [deg C] 5-14
31 PERFORMANCE DATA & PRESSURE CURVES Model: CN 60 DCI Cooling Test Mode Suction Pressure Vs.Outdoor Temp. Suction Pressure [kpa] Outdoor DB Temperature[ o C] Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 Discharge Pressure Vs.Outdoor Temp. Discharge Pressure [kpa] Outdoor DB Temperature[ o C] Indoor DB/WB 22/15 24/17 27/19 29/21 32/
32 PERFORMANCE DATA & PRESSURE CURVES Heating Test Mode Suction Pressure Vs.Outdoor Temp. Suction Pressure [kpa] Outdoor WB Temperature[ o C] Indoor DB Discharge Pressure [kpa] Discharge Pressure Vs. Outdoor Temp. Indoor DB Outdoor WB Temperature[ o C]
33 PERFORMANCE DATA & PRESSURE CURVES 5.5 CN 70 DCI Cooling Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed. OD COIL ENTERING AIR DB TEMPERATURE [ 0 C] (protection range) ID COIL ENTERING AIR DB/WB TEMPERATURE [C 0 ] DATA 22/15 24/17 27/19 29/21 32/23 TC % of nominal SC % of nominal PI % of nominal TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI LEGEND TC Total Cooling Capacity, kw SC Sensible Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Capacity Ratio Cooling Capacity Ratio Vs. Outdoor Temperature Outdoor Temperature [ºC] 5-17
34 PERFORMANCE DATA & PRESSURE CURVES Heating Capacity (kw) - Run Mode [230V] : Indoor Fan at High Speed ID COIL ENTERING AIR DB TEMPERATURE [C 0 ] OD COIL ENTERING AIR DB/WB TEMPERATURE [ 0 C] DATA /-16 TC PI /-12 TC PI /-8 TC PI /-2 TC PI /1 TC PI /6 TC PI /9 TC PI /12 TC PI TC % of nominal (Protection Range) PI % of nominal LEGEND TC Total Heating Capacity, kw PI Power Input, kw WB Wet Bulb Temp., ( o C) DB Dry Bulb Temp., ( o C) ID Indoor OU Outdoor Capacity Correction Factors Heating Capacity Ratio Vs. Outdoor Temperature Capacity Ration Outdoor WB Temperature [deg C] 5-18
35 PERFORMANCE DATA & PRESSURE CURVES Model: CN 70 DCI Cooling Test Mode Suction Pressure [kpa] Suction Pressure Vs. Outdoor Temp Outdoor DB Temperature[ O C] Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 Discharge Pressure [kpa] Discharge Pressure Vs. Temp Outdoor DB Temperature[ O C] Indoor DB/WB 22/15 24/17 27/19 29/21 32/
36 PERFORMANCE DATA & PRESSURE CURVES Heating Test Mode 1050 Suction Pressure Vs. Outdoor Temp. Suction Pressure [kpa] Outdoor WB Temperature[ O C] Indoor DB Discharge Pressure Vs. Outdoor Temp. Discharge Pressure [kpa] Outdoor WB Temperature[ O C] Indoor DB
37 PERFORMANCE DATA & PRESSURE CURVES 5.6 Capacity Correction Factor Due to Tubing Length Cooling TOTAL TUBING LENGTH Model 3m 7.5m 10m 15m 20m 25m 30m 40m 50m ז * Minimum recommended tubing length between indoor and outdoor units is 3m.w Heating TOTAL TUBING LENGTH Model 3m 7.5m 10m 15m 20m 25m 30m 40m 50m * Minimum recommended tubing length between indoor and outdoor units is 3m. 5.7 Fresh air volume to the external static pressure (Field option) KnoCN-down opening :φ100mm on the casing for the fresh duct Fresh air control: by external booster fan Select the fresh air volume according to required external static pressure. Fresh air volume Vs. ESP Volume(m3/h) Fresh Air ESP(Pa) 5.8 Conditioned air supply to adjacent room (Field option) (To be finished) 5-21
38 SOUND LEVEL CHARACTERISTICS 6. SOUND LEVEL CHARACTERISTICS 6.1 Sound Pressure Level 1.5m Unit Mic. Figure Soud Pressure Level Spectrum (Measured as Figure 1) CN 25 CN 35 FAN SPEED HI ME LO LINE 6-1
39 SOUND LEVEL CHARACTERISTICS CN 50 CN 60 CN 70 FAN SPEED HI ME LO LINE 6-2
40 SOUND LEVEL CHARACTERISTICS 6.3 Outdoor units MODEL SPL db(a) SPW db(a) Indoor Outdoor Cooling/Heating Cooling/Heating CN 25 DCI 25 50/51 60/61 CN 35 DCI 35 52/52 62/62 CN 50 DCI 50 52/53 62/63 CN 60 DCI 60 55/55 65/65 CN 70 DCI 72Z 56/56 66/66 Unit 1m Mic. Figure 2 Ground 6.4 Sound Pressure Level Spectrum (Measured as Figure 2) DCI 25 Cooling DCI 25 Heating 6-3
41 SOUND LEVEL CHARACTERISTICS DCI 35 Cooling DCI 35 Heating DCI 50 Cooling DCI 50 Heating FAN SPEED HI ME LO LINE 6-4
42 SOUND LEVEL CHARACTERISTICS DCI 60 Cooling DCI 60 Heating DCI 72 Cooling DCI 72 Heating FAN SPEED HI ME LO LINE 6-5
43 ELECTRICAL DATA 7. ELECTRICAL DATA 7.1 Single Phase Units MODEL CN 25 DCI CN 35 DCI CN 50 DCI CN 60 DCI CN 70 DCI Power Supply To indoor To indoor To indoor To indoor To outdoor 1PH-230V-50Hz 1PH-230V-50Hz 1PH-230V-50Hz 1PH-230V-50Hz 1PH-230V-50Hz Max Current, A Inrush Current A Starting Current A Circuit Breaker A Power Supply Wiring No.X Cross Section mm 2 3 x 1.5 mm 2 3 x 1.5 mm 2 3 x 2.5 mm 2 3 x 2.5 mm 2 3 x 2.5 mm 2 Interconnecting Cable No.X Cross Section mm 2 4 x 1.5 mm 2 4 x 1.5 mm 2 4 x 2.5 mm 2 4 x 2.5 mm 2 4 x 2.5 mm 2 NOTE Power wiring cord should comply with local lows and electrical regulations requirements. 7-1
44 WIRING DIAGRAMS 8. WIRING DIAGRAMS 8.1 CN 25, 35, 50, 60, 70 DCI 8-1
45 WIRING DIAGRAMS 8.2 Outdoor Unit: DCI 72Z COMP RED BRN BLK WHITE CHOKE COIL BLUE REVERSE VALVE BASE HEATER (OPTIONAL) OFAN OCT CTT OAT OMT HST U P3 V P9 W 1 P1 P13 ODU CONTROLLER PCBA P10 L N COM N-COM P14 P12 EARTH 1 2 P P1 JP P19 P20 P6 6 5 P P2 P8 1 2 P5 FERRITE CORE BLACK RED BLUE BROWN Y/G EMI FILTER PCBA EARTH EARTH NCOM COM N-F L-F COM N L L FUSE N RED BROWN BLUE RED BROWN BLUE FERRITE CORE EEV N C L N L AC MAINS TO IDU 8-2
46 REFRIGERATION DIAGRAMS 9. REFRIGERATION DIAGRAMS 9.1 CN 25, 35, 50, 60, 70 DCI Cooling Mode EEV Heating Mode EEV 9-1
47 TUBING CONNECTIONS 10. TUBING CONNECTIONS TUBE (Inch) ¼ ⅜ ½ ⅝ ¾ TORQUE (Nm) Flare Nuts Valve Cap Service Port Cap Valve Protection Cap-end 2. Refrigerant Valve Port (use Allen wrench to open/close) 3. Valve Protection Cap 4. Refrigerant Valve 5. Service Port Cap 6. Flare Nut 7. Unit BaCN Side 8. Copper Tube When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction line at the lowest point of the riser. Incase the indoor unit is installed above the outdoor, no trap is required. 10-1
48 CONTROL SYSTEM 11. CONTROL SYSTEM 11.1 General Functions and Operating RulesThe DCI software is fully parametric. All the model dependent parameters are shown in Blue color and with Italic style [parameter]. The parameters values are given in the last section of this control logic chapter of the service manual System Operation Concept The control function is divided between indoor and outdoor unit controllers. Indoor unit is the system Master, requesting the outdoor unit for cooling/heating capacity supply. The outdoor unit is the system Slave and it must supply the required capacity unless it enters into a protection mode avoiding it from supplying the requested capacity. The capacity request is transferred via indoor to outdoor communication, and is represented by a parameter called NLOAD. NLOAD is an integer number with values between 0 and 127, and it represents the heat or cool load felt by the indoor unit Compressor Frequency Control NLOAD setting The NLOAD setting is done by the indoor unit controller, based on a PI control scheme. The actual NLOAD to be sent to the outdoor unit controller is based on the preliminary LOAD calculation, the indoor fan speed, and the power shedding function. NLOAD limits as a function of indoor fan speed: Indoor Fan Speed Maximum NLOAD Cooling Maximum NLOAD Heating Indoor Fan Speed Maximum NLOAD Cooling Maximum NLOAD Heating Low MaxNLOADIF1C MaxNLOADIF1H Medium MaxNLOADIF2C MaxNLOADIF2H High MaxNLOADIF3C MaxNLOADIF3H Turbo MaxNLOADIF4C MaxNLOADIF4H Auto MaxNLOADIF5C MaxNLOADIF5H NLOAD limits as a function of power shedding: Mode Power Shedding OFF Power Shedding ON Cooling No limit Nominal Cooling Heating No limit Nominal heating Target Frequency Setting Target Frequency Setting for DCI 25/35/50/60/72Z The compressor target frequency is a function of the NLOAD number sent from the indoor controller and the outdoor air temperature. Basic Target Frequency Setting: Up to SW 35V12 NLOAD Target Frequency [Hz] < MinFreqC in cool OR MinFreqH in heat mode NLOAD (as long it is in the allowed range, if not, the MinFreqC or Max FreqC in cool mode OR MinFreqH or MaxFreqH in heat mode will be selected). 127 MaxFreqC in cool OR MaxFreqH in heat mode. 11-1
49 CONTROL SYSTEM SW 35V14 and above NLOAD Target Frequency [Hz] < NLOAD MinFreq MinFreq > MinFreq Differences between Old and New ODU DCI/DCR software Unit Current software New software DCI 35V12 35V14 Comment: there is no use for 35V13 software. This software is used in the past for Nordic countries. However, currently it s stopped completely from being used. Graphical Illustration: Target Frequency MaxFreq MaxFreq MinFreq {min (NLOAD, LoadDeadZone) MinFreq} MinFreq LoadDeadZone MinFreq Minimum Allowed Linearization LoadDeadZone allowed in this range Maximum Allowed Linearization MinFreq MinFreq ( MaxFreq LoadDeadZone ) 127 NLOAD MaxFreq MinFreq LoadDeadZone Mode During initial period After initial period (Start Phase) (Run Phase) Cool MaxFreqC MaxFreqCRunPhase Heat MaxFreqH MaxFreqHRunPhase Cool MinFreqC Heat MinFreqH Cool LoadDeadZoneC Heat LoadDeadZoneH # Name A Single DCI-25 B Single DCI-35 C Single DCI-50 D Single DCI 60 E Duo 50 F DCR 50 G Duo Delta38 H Trio Delta52 1 MinFreqC MaxFreqC MaxFreqCRunPhase MinFreqH MaxFreqH MaxFreqHRunPhase LoadDeadZoneC LoadDeadZoneH I DCR 50T 11-2
50 CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature (OAT): OAT Range Cooling Mode limits Heating Mode limits OAT < 6 No limit 6 OAT < 15 MaxFreqAsOATC MaxFreqAsOAT1H 15 OAT<28 28 OAT No limit MaxFreqAsOAT2H Frequency Changes Control When the unit is running normally, the compressor frequency change rate is 1 Hz/sec Compressor Starting Control Compressor starting control for DCI25/35/50/60 Step3 Step2 Step1 1 Minute 1 Minute Min 10 Minutes Time Compressor starting control for DCI72Z Step 1 Whenever the compressor starts up, after it has been off for more than 45 minutes, the compressor frequency cannot go below Step1RPS for 3 continuous minutes (this rule comes to ensure oil return to the compressor). Step 2 The compressor speed cannot go above Step2RPS once after each compressor start up for 3 continuous minutes (this rule comes to prevent oil exit from the compressor after its start up). Step 3 The speed cannot go higher than Step3RPS unless it was operating for more than 1 continuous minutes between Step3RPS 5 and Step3RPS. After passing above Step3RPS, this rule is re-applied when passing below Step3RPS
51 CONTROL SYSTEM Minimum On and Off Time 3 minutes Indoor Fan Control 8 Indoor fan speeds are determined for each model. 4 speeds for cool/dry/fan modes and 4speeds for heat mode. When user sets the indoor fan speed to a fixed speed (Low/ Medium/ High), unit will operate constantly at set speed. When Auto Fan is selected, indoor unit controller can operate in all speeds. The actual speed is set according to the cool/heat load Turbo Speed The Turbo speed is activated during the first 30 minutes of unit operation when auto fan speed is selected and under the following conditions: Difference between set point and actual room temperature is bigger then 3 degrees. Room temperature > 22 for cooling, or < 25 for heating Outdoor Fan Control Outdoor Fan Control for DCI25/35/50/60 7 outdoor fan speeds are determined for each model. 3 speeds for cool and dry modes, and 3speeds for heat mode, and a very low speed. Outdoor fan speed is a function of compressor frequency and outdoor air temperature (OAT). 4 routines for fan control are determined. The control routine selection depends on operation mode, compressor speed, outdoor air temperature (OAT) and heat sink temperature (HST). Routine A B C D Conditions Heating with OAT < 15 or Cooling with OAT > 20, or Faulty OAT Cooling with 20 > OAT > 7 Cooling with 7 > OAT Heating with OAT > 15 Compressor Target Frequency Routin A OFAN Speed Routin B Routin C Routin D Freq=0 OFF OFF OFF OFF 10 Freq < OFLowFreq Low Low VL Low OFLowFreq Freq< OFMedFreq Medium Low VL Low OFMedFreq Freq High Low Low Medium 11-4
52 CONTROL SYSTEM OFAN State at Cool Mode 3 Degrees 3 Degrees HST 50 Change To Higher OFAN Cool state (*1) Note: Periorities A>B>C 45 (*1) If State C, change to B If State B, change to A Change To lower OFAN Cool state When compressor is switched to OFF and the heat sink temperature is above 55 degrees, the outdoor fan will remain ON in low speed for up to 3 minutes Outdoor Fan Control for DCI72Z OFAN operates between OFMinRPM to OFMaxRPM. Min time for speed change of OFAN OFMinTimeReduce (60 seconds). There are 4 defined speeds High, Med, Low, and Very Low. The actual OFAN speeds in cool mode are defined according to the following table: Freq Outdoor air temperature (OAT) The actual OFAN speeds in heat mode are defined according to the following table Freq Outdoor air temperature (OAT) The fan speed is also related to protections and OMT value. 11-5
53 CONTROL SYSTEM EEV (Electronic Expansion Valve) Control EEV Control for DCI25/35/50/60 EEV opening is defined as EEV = EEV OL + EEV CV EEV OL is the initial EEV opening as a function of the compressor frequency, operation mode, unit model and capacity. EEV CV is a correction value for the EEV opening that is based on the compressor temperature. During the first 5 minutes of compressor operation EEV CV = 0. Once the first 5 minutes are over, the correction value is calculated as follow: EEV CV (n) = EEV CV (n-1) + EEV CTT EEV CTT is the correction based on the compressor temperature. A target compressor temperatureзs set depending on frequency and outdoor air temperature, and the actual compressor temperature is compared to the target temperature to set the required correction to the EEVopening EEV Control for DCI72Z The target EEV value is the sum of open loop value (OL) and a result of the accumulative correction values (CV). EEV EEV OL EEVCV Initial EEV value is set according to compressor frequency and according to indoor and outdoor model The corrective value is calculate every 30 sec the EEV corrective value is set to keep the discharged super heat temperature between 20º to 30º in cooling and 12º to 20º in heating. 11-6
54 CONTROL SYSTEM RV(Reversing Valve) Control Reversing valve is on in heat mode. Switching of RV state is done only after compressor is off for over 3 minutes Ioniser Control Ioniser is on when unit is on,and indoor fan is on,and Ioniser power switch (on grille) is on Base Heater Control The base heater will be working only when RV is ON according to the following graph: Base Heater OFF ON 0 2 OAT When OAT is faulty the base heater will be ON continuously in HEAT mode Fan Mode In high/ medium/ low indoor fan user setting, unit will operate fan in selected speed. In AutoFan user setting, fan speed will be adjusted automatically according to the difference between actual room temperature and user set point temperature Cool Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by fuzzy control. In high/ medium/ low indoor fan user setting, unit will operate fan in selected speed. In AutoFan user setting, fan speed will be adjusted automatically according to the calculated NLOAD Heat Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by fuzzy control. In high/ medium/ low indoor fan user setting, unit will operate fan in selected speed. In AutoFan user setting, fan speed will be adjusted automatically according to the calculated NLOAD Temperature Compensation In ducted and cassette models, 3 degrees are reduced from room temperature reading (except when in I-Feel mode), to compensate for temperature difference between high and low areas in the heated room, and for coil heat radiation on room thermistor. The temperature compensation can be enabled/disabled by shortening of J2 on the indoor unit Controller Model J2 Shorted J2 Opened Cassette Compensation Enabled Compensation Disabled Ducted Compensation Enabled Compensation Disabled 11-7
55 CONTROL SYSTEM Indoor Fan Control in Heating Mode Indoor fan speed depends on the indoor coil temperature: Auto Cool/Heat Mode When in auto cool heat mode unit will automatically select between cool and heat mode according to the difference between actual room temperature and user set point temperature (.T). Unit will switch from cool to heat when compressor is off for 3 minutes, and.t < -3. Unit will switch from heat to cool when compressor is off for 5 minutes, and.t < Dry Mode As long as room temperature is higher then the set point, indoor fan will work in low speed and compressor will work between 0 and MaxNLOADIF1C Hz. When the room temperature is lower than the set point, compressor will be switched OFF and indoor fan will cycle 3 minutes OFF, 1 minute ON Protections There are 5 protection codes. Normal (Norm) unit operate normally. Stop Rise (SR) compressor frequency can not be raised but does not have to be decreased. HzDown1 (D1) Compressor frequency is reduced by 2 to 5 Hz per minute. HzDown2 (D2) Compressor frequency is reduced by 5 to 10 Hz per minute. Stop Compressor (SC) Compressor is stopped Indoor Coil Defrost Protection CN Min(ICT,ICTE) Trend Fast Increasing Increasing No Change Decreasing Fast Decreasing < -2 SC SC SC SC SC [-2, 0) D1 D1 D2 D2 D2 [0, 2) SR SR D1 D2 D2 [2, 4) SR SR SR D1 D2 [4, 6) Norm Norm SR SR D1 [6, 8] Norm Norm Norm SR SR > 8 Norm 11-8
56 CONTROL SYSTEM Indoor Coil Defrost Protection CN ICT Trend Fast Increasing Increasing No Change Decreasing Fast Decreasing < -2 SC SC SC SC SC [-2, 0) D1 D1 D2 D2 D2 [0, 2) SR SR D1 D2 D2 [2, 4) SR SR SR D1 D2 [4, 6) Norm Norm SR SR D1 [6, 8] Norm Norm Norm SR SR > 8 Norm Indoor Coil Overheating Protection ICT ICT Trend Fast Decreasing Decreasing No Change Increasing Fast Increasing >62 SC SC SC SC SC [60, 62) D1 D1 D2 D2 D2 [55, 60) SR SR D1 D2 D2 [52, 55) SR SR SR D1 D2 [48, 52) Norm Norm SR SR D1 [45, 48) Norm Norm Norm SR SR I<45 Norm Compressor Overheating Protection Compressor Overheating Protection for DCI25/35/50/60/72Z Compressor temperature can be in one of 5 control zones (4 in protection, and 1 normal), according to the following chart. CTT Stop-Compressor P3 P2 P1 Normal Control Status Compressor Temperature Increases Else P1 Normal Stop Rise P2 HzDown 1 Stop Rise P3 HzDown 2 HzDown 1 Stop Compressor Stop Compressor 11-9
57 CONTROL SYSTEM Compressor Over Current Protection Only For DCI25/35/50/60/72Z CCR CCROC4 Stop-Compresor CCROC3 CCROC2 CCROC1 HzDown1 Normal HzDown2 Stop-Rise Heat Sink Overheating Protection Heat Sink Overheating Protection For DCI25/35/50/60/72Z HST HST Trend Fast Decreasing Decreasing No Change Increasing Fast Increasing 90 SC SC SC SC SC [85, 90) D1 D1 D2 D2 D2 [82, 85) SR SR D1 D2 D2 [80, 82) SR SR SR D1 D1 [78, 80) Norm Norm Norm SR SR < 78 Norm Outdoor Coil Deicing Protection Outdoor coil Deicing Protection For DCI25/35/50/60/72Z Entering Deicing Conditions Deicing operation will start when either one of the following conditions exist: Case 1: OCT < OAT 8 AND TLD > DI Case 2: OCT < OAT 12 AND TLD > 30 minutes. Case 3: OCT is Invalid AND TLD > DI Case 4: Unit is just switched to STBY AND OCT < OAT 8 Case 5: NLOAD = 0 AND OCT < OAT -8 Case 6: OCT<-19 AND TLD>60 minutes All this condition will exist during 10 seconds OCT Outdoor Coil Temperature OAT Outdoor Air Temperature TLD Time from Last Deicing DI Deicing Interval (Time Interval Between Two Deicing) Deicing interval time when compressor is first started in heat mode, is 10 minutes if OCT < -2, and is 40 minutes in other cases. Deicing interval time is changed (increased/ decreased in 10 minutes steps) as a function of deicing time. If deicing time is shorter then former deicing time, the deicing interval time will be increased. If deicing time is longer then former deicing time, the deicing interval time will be decreased
58 CONTROL SYSTEM Deicing Operation Procedure OCT 12 0 Threshold COMP ON T1 T2 T1 DeiceFreqChRV RV HEAT COOL T3 DT max. 12 minutes T3 OFAN ON OFF EEV EEVDeicerOpen Any T1=60 secondes;t2=36 secondes;t3=6 secondes T1=50 secondes;t2=36 secondes;t3=6 secondes Condensate Water Over Flow Protection P1 P2 P3 P4 Level Connector Top View Each of the pins P1, P2, P3 can have two options: 1 When it is shorted with P4 0 When it is not shorted to P4 P1 P2 P3 Level Don t care Don t care 1 Normal Don t care Don t care 0 Overflow (*) 1- Pin P1, P2, or P3 is connected to P4. 0- Pin P1, P2 or P3 is not connected to P4. For CN unit: In case of vertical installation, change dipswitch 7 to OFF position to cancel Water Pump operation
59 CONTROL SYSTEM Water Level Overflow Normal Overflow when unit is ON Overflow when unit is OFF OPER LED ON OFF BLINK NLOAD ANY 0 NLOAD is forced to 0 PUMP ON OFF 8 min 8 min 8 min Operating the Unit from Mode Button (On display) Forced operation allows to start, stop and operate in Cooling or Heating, in pre-set temperature according to the following table: Forced operation Mode Cooling Heating Pre-set Temperature On Unit Controls and Indicators Indoor Unit controller Controls and Indicatiors for All Models Except for Floor/Ceiling model During OFF, Fan, Cool, Heat, Dry, and Auto modes (for operation in other modes, see at the relevant spec paragraph): Lights up when the Air Conditioner is connected to power and ready STAND BY/OPERATION to receive the R/C commands INDICATOR Lights up during operations. Blinks when compressor is stopped as a result of a thermodynamic protection. ESF/INOIZER INDICATOR Lights up during ESF/ ionizer operation. TIMER INDICATOR Lights up during Timer and Sleep operation. FILTER INDICATOR Lights up when Air Filter needs to be cleaned. Every short pressing, the next operation mode is selected, in this order : SB Cool Mode Heat Mode SB MODE/RESET BUTTON Press to turn off the filter indicator and to reset the filter function, after the cleaned filter has been reinstalled. In long pressing the system enters into diagnostic mode
60 CONTROL SYSTEM Outdoor Unit controller Indicatiors Unit has three LED s. SB LED is ON when power is ON (230 VAC, even when no communication). STATUS LED is ON when COMP is ON, and Blinks according to diagnostics mode definitions when either fault or protection occurs. FAULT LED Blinks according to diagnostics mode definitions when either fault or protection occurs DIP switch settings Indoor Unit Controller Power PCB - CN PUMP Wire to Main PCB DC Motor Cable Main PCB - CN Self Test Jumper DIP Switch M2L Port 12Pin Displayer Cable MCU Flash Port Alarm Output Unit On Output RC-W RC-W Power PD/PS Safety switch Terminals Inoizer ESF Swing Motor ICTE Sensor ICT Sensor RAT Sensor Water Level 11-13
61 CONTROL SYSTEM Main PCB CN ICTE sensor MCU Flash Port IF Motor ICT sensor RAT sensor M2L Port DIP Switch WATER level Unit On output ALARM output RCW Power RCW 16 Pins Display (not used) To Display Water Pump Fresh Air 11-14
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