Service manual

ManualsBrandsDelta ManualsDomestic AppliancesPG-35

Delta DCI Series

Indoor Units Outdoor Units

Delta 22 DCR 22

Delta 25 DCR 25

Delta 35 DCR 35

Delta 50 DCR 50

REFRIGERANT

SEPTEMBER – 2008

REFRIGERANT

R410A

HEAT PUMP

SM DELTA 1-E.2 GB

CONTENT

Summary of content (78 pages)

PAGE 1
Delta DCI Series Indoor Units Outdoor Units Delta 22 Delta 25 Delta 35 Delta 50 DCR 22 DCR 25 DCR 35 DCR 50 REFRIGERANT REFRIGERANT R410A SM DELTA 1-E.
PAGE 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 ....... 0 ........ 15 March 2005 Total number of pages in this publication is 79 consisting of the following: Page No. Revision No. # Page No. Revision No.
PAGE 3
TABLE OF CONTENTS Table of Contents 1. INTRODUCTION ...................................................................................................1-1 2. PRODUCT DATA SHEET ......................................................................................2-1 3. RATING CONDITIONS ..........................................................................................3-1 4. OUTLINE DIMENSIONS .......................................................................................4-1 5.
PAGE 4
INTRODUCTION 1. INTRODUCTION 1.1 General The new Delta DC Inverter split wall mounted series comprise RC (heat pump) models, as follows: ● Delta 22 ● Delta 25 ● Delta 35 ● Delta 50 The indoor Delta units are available as LED display types only, featuring esthetic design, compact dimensions, and low noise operation. 1.2 Main Features The Delta series beneﬁts from the most advanced innovations, namely: ● DC Inverter Technology ● R410A ● Microprocessor control.
PAGE 5
INTRODUCTION 1.3 Indoor Unit The indoor unit is wall mounted, and can be easily ﬁtted to many types of residential and commercials applications. It includes: ● Casing with air inlet and outlet grills. ● A large-diameter tangential fan. ● Bended coil with treated aluminum ﬁns. ● Motorized ﬂaps. ● Variable Speed motor (PG). ● Advanced electronic control box assembly. ● Interconnecting wiring terminal block. ● Mounting plate. 1.
PAGE 6
INTRODUCTION 1.7 Tubing Connections Flare type interconnecting tubing to be produced on site. For further details please refer to the Installation Manual, Appendix A. 1.8 Inbox Documentation Each unit is supplied with its own installation and operation manuals. 1.9 Matching Table INDOOR UNITS OUTDOOR UNITS SM DELTA 1-E.
PAGE 7
PRODUCT DATA SHEET 2. PRODUCT DATA SHEET 2.
PAGE 8
PRODUCT DATA SHEET 2.2 Delta 25 / DCR 25 DCI R410A Model Indoor Unit Model Outdoor Unit Installation Method of Pipe Characteristics Capacity (1) OUTDOOR INDOOR Power input (1) EER (Cooling) or COP(Heating) (1) Energy efﬁciency class Power supply Rated current Starting current Circuit breaker rating Fan type & quantity Fan speeds H/M/L H/M/L Air ﬂow (2) External static pressure Min-Max H/M/L Sound power level (3) H/M/L Sound pressure level(4) Moisture removal Condensate drain tube I.
PAGE 9
PRODUCT DATA SHEET 2.3 Delta 35 / DCR 35 DCI R410A Model Indoor Unit Model Outdoor Unit Installation Method of Pipe Characteristics DELTA 35 DCR 35 Flared Units Btu/hr kW kW W/W Capacity (1) OUTDOOR INDOOR Power input (1) EER (Cooling) or COP(Heating) (1) Energy efﬁciency class Power supply Rated current Starting current Circuit breaker rating Fan type & quantity Fan speeds Air ﬂow (2) External static pressure Sound power level (3) Sound pressure level(4) Moisture removal Condensate drain tube I.
PAGE 10
PRODUCT DATA SHEET 2.4 Delta 50 / DCR 50 DCI R410A Model Indoor Unit Model Outdoor Unit Installation Method of Pipe Characteristics Capacity (1) (1) OUTDOOR INDOOR Power input (1) EER (Cooling) or COP(Heating) Energy efficiency class Power supply Rated current Starting current Circuit breaker rating Fan type & quantity Fan speeds H/M/L (2) H/M/L Air flow External static pressure Min-Max (3) Sound power level H/M/L (4) Sound pressure level H/M/L Moisture removal Condensate drain tube I.
PAGE 11
RATING CONDITIONS 3. RATING CONDITIONS Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). Cooling: Indoor: 27oC DB 19oC WB Outdoor: 35 oC DB Heating: Indoor: 20oC DB Outdoor: 7oC DB 6oC WB 3.1 Operating Limits 3.1.1 R410A Indoor o Outdoor o 46oC DB Upper limit 32 C DB 23 C WB 10oC DB Lower limit 21oC DB 15oC WB 27oC DB 24oC DB 18oC WB Upper limit Heating 10oC DB -15oC DB -16oC WB Lower limit 198 – 264 V Voltage Cooling SM DELTA 1-E.
PAGE 12
OUTLINE DIMENSIONS 4. OUTLINE DIMENSIONS 4.1 Indoor Unit: Delta 22, 25 DCI 4.2 Indoor Unit: Delta 35 DCI SM DELTA 1-E.
PAGE 13
OUTLINE DIMENSIONS 4.3 Indoor Unit: Delta 50 DCI 4.4 Outdoor Unit: DCR 22, 25, 35 DCI AIR INTAKE AIR OUTLET 4-2 CONTENT SM DELTA 1-E.
PAGE 14
OUTLINE DIMENSIONS 4.5 Outdoor Unit: DCR 50 DCI SM DELTA 1-E.
PAGE 15
PERFORMANCE DATA & PRESSURE CURVES 5. PERFORMANCE DATA 5.1 Delta 22 DCI 5.1.1 Cooling Capacity (kW) – Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [oC] OD COIL ENTERING AIR DB TEMPERATURE [oC] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 2.12 1.62 0.52 2.02 1.58 0.58 1.92 1.54 0.64 1.82 1.50 0.70 1.70 1.46 0.
PAGE 16
PERFORMANCE DATA & PRESSURE CURVES 5.1.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [oC] OD COIL ENTERING AIR DB/WB TEMPERATURE [oC] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 15-24 (Protection Range) DATA 15 20 25 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI 1.59 0.44 1.77 0.53 1.91 0.60 1.97 0.63 2.02 0.65 2.61 0.69 2.75 0.73 2.90 0.77 1.48 0.48 1.66 0.57 1.80 0.64 1.86 0.67 1.91 0.70 2.50 0.73 2.64 0.77 2.79 0.
PAGE 17
PERFORMANCE DATA & PRESSURE CURVES 5.2 Delta 25 DCI 5.2.1 Cooling Capacity (kW) – Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [oC] OD COIL ENTERING AIR DB TEMPERATURE [oC] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 2.41 1.67 0.59 2.30 1.63 0.66 2.18 1.59 0.73 2.07 1.55 0.80 1.93 1.50 0.88 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 2.57 2.
PAGE 18
PERFORMANCE DATA & PRESSURE CURVES 5.2.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [oC] OD COIL ENTERING AIR DB/WB TEMPERATURE [oC] DATA 15 20 25 1.78 0.49 1.98 0.59 2.14 0.67 2.21 0.71 2.26 0.73 2.92 0.77 3.09 0.82 3.25 0.86 1.66 0.54 1.86 0.64 2.01 0.72 2.09 0.76 2.14 0.78 2.80 0.82 2.96 0.87 3.12 0.91 85 - 105 % of nominal 1.53 0.59 1.73 0.69 1.89 0.77 1.96 0.81 2.01 0.83 2.68 0.87 2.84 0.92 3.00 0.
PAGE 19
PERFORMANCE DATA & PRESSURE CURVES 5.3 Delta 35 DCI 5.3.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [oC] OD COIL ENTERING AIR DB TEMPERATURE [oC] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 3.38 2.54 0.81 3.22 2.48 0.90 3.06 2.42 1.00 2.90 2.36 1.09 2.70 2.28 1.21 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 3.60 3.82 4.
PAGE 20
PERFORMANCE DATA & PRESSURE CURVES 5.3.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [oC] OD COIL ENTERING AIR DB/WB TEMPERATURE [oC] DATA 15 20 25 2.29 0.63 2.55 0.76 2.75 0.86 2.84 0.91 2.91 0.94 3.76 0.99 3.97 1.04 4.17 1.10 2.13 0.69 2.39 0.82 2.58 0.92 2.68 0.97 2.75 1.00 3.60 1.05 3.81 1.11 4.01 1.17 85 - 105 % of nominal 1.97 0.76 2.23 0.89 2.42 0.98 2.52 1.03 2.59 1.07 3.44 1.11 3.65 1.17 3.85 1.
PAGE 21
PERFORMANCE DATA & PRESSURE CURVES 5.4 Delta 50 DCI 5.4.1 Cooling Capacity (kW) – Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [oC] OD COIL ENTERING AIR DB TEMPERATURE [oC] 22/15 24/17 29/21 32/23 TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC 4.93 3.68 1.18 4.67 3.53 1.34 4.42 3.39 1.51 4.17 3.25 1.67 3.86 3.08 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 5.22 5.51 5.80 3.73 3.79 3.84 1.21 1.23 1.26 4.96 5.25 5.54 3.59 3.64 3.70 1.
PAGE 22
PERFORMANCE DATA & PRESSURE CURVES 5.4.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [oC] OD COIL ENTERING AIR DB/WB TEMPERATURE [oC] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 DATA 15 20 25 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI 3.37 0.93 3.76 1.12 4.04 1.26 4.18 1.34 4.28 1.38 5.54 1.46 5.84 1.54 6.14 1.63 3.14 1.02 3.52 1.22 3.81 1.36 3.95 1.43 4.04 1.48 5.30 1.55 5.60 1.64 5.91 1.72 2.90 1.12 3.28 1.31 3.57 1.45 3.71 1.
PAGE 23
PERFORMANCE DATA & PRESSURE CURVES 5.5 Capacity Correction Factor Due to Tubing Length 5.5.1 Delta 22 DCI : Cooling 1.01 Capacity Ratio 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 3 5 7 9 11 13 7 9 11 Tubing Length[m ] 13 15 Tubing Length[m ] Heating Capacity Ratio 5.5.2 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 3 SM DELTA 1-E.
PAGE 24
PERFORMANCE DATA & PRESSURE CURVES Delta 25 DCI : Cooling Capacity Ratio 5.5.3 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 0.90 3 5.5.4 5 7 9 11 Tubing Length[m ] 13 15 5 7 9 11 Tubing Length[m ] 13 15 Heating Capacity Ratio 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.86 0.84 3 5-10 CONTENT SM DELTA 1-E.
PAGE 25
PERFORMANCE DATA & PRESSURE CURVES 5.5.5 Delta 35 DCI : Cooling 1.01 Capacity Ratio 1.00 0.99 0.98 0.97 0.96 0.95 0.94 3 5.5.6 5 7 9 11 Tubing Length[m ] 13 15 5 7 9 11 Tubing Length[m ] 13 15 Heating 1.005 Capacity Ratio 1.000 0.995 0.990 0.985 0.980 0.975 0.970 3 SM DELTA 1-E.
PAGE 26
PERFORMANCE DATA & PRESSURE CURVES 5.5.7 Delta 50 DCI : Cooling 1.01 Capacity Ratio 1.00 0.99 0.98 0.97 0.96 0.95 0.94 3 5.5.8 5 7 9 11 Tubing Length[m ] 13 15 7 9 Tubing Length[m ] 13 15 Heating 1.005 Capacity Ratio 1.000 0.995 0.990 0.985 0.980 0.975 0.970 3 5-12 5 CONTENT 11 SM DELTA 1-E.
PAGE 27
PERFORMANCE DATA & PRESSURE CURVES 5.6 Pressure Curves 5.6.1 Model: Delta 22 DCI Cooling – Test Mode Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1200 1100 1000 900 22/15 DB /WB 24/17 DB /WB 27/19 DB /WB 29/21 DB /WB 32/23 DB /WB 800 700 600 10 15 20 25 30 35 40 45 Outdoor DB Temperature [ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp.
PAGE 28
PERFORMANCE DATA & PRESSURE CURVES 5.6.2 Heating – Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1000 900 800 700 600 15 DB 500 20 DB 400 25 DB 300 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp. 3500 3250 3000 2750 2500 2250 2000 15 DB 1750 20 DB 1500 25 DB 1250 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] 5-14 CONTENT SM DELTA 1-E.
PAGE 29
PERFORMANCE DATA & PRESSURE CURVES 5.6.3 Model: Delta 25 DCI Cooling – Test Mode Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1100 1000 900 800 22/15 DB /WB 24/17 DB /WB 27/19 DB /WB 29/21 DB /WB 32/23 DB /WB 700 600 500 10 15 20 25 30 35 40 45 Outdoor DB Temperature [ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp.
PAGE 30
PERFORMANCE DATA & PRESSURE CURVES 5.6.4 Heating – Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1000 900 800 700 600 15 DB 500 20 DB 400 25 DB 300 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 15 DB 20 DB 25 DB -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] 5-16 CONTENT SM DELTA 1-E.
PAGE 31
PERFORMANCE DATA & PRESSURE CURVES 5.6.5 Model: Delta 35 DCI Cooling – Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1200 1100 1000 900 800 700 22/15 DB /WB 24/17 DB /WB 27/19 DB /WB 29/21 DB /WB 32/23 DB /WB 600 500 400 10 15 20 25 30 35 40 45 Outdoor DB Temperature [ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp.
PAGE 32
PERFORMANCE DATA & PRESSURE CURVES 5.6.6 Heating – Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1000 900 800 700 600 15 DB 500 20 DB 400 25 DB 300 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 15 DB 20 DB 25 DB -15 5-18 -10 -5 0 5 Outdoor WB Temperature[ºC] CONTENT 10 15 SM DELTA 1-E.
PAGE 33
PERFORMANCE DATA & PRESSURE CURVES 5.6.7 Model: Delta 50 DCI Cooling – Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1200 1100 1000 900 800 700 22/15 DB /WB 24/17 DB /WB 27/19 DB /WB 29/21 DB /WB 32/23 DB /WB 600 500 400 10 15 20 25 30 35 40 45 Outdoor DB Temperature [ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp.
PAGE 34
PERFORMANCE DATA & PRESSURE CURVES 5.6.8 Heating – Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1000 900 800 700 600 15 DB 500 20 DB 400 25 DB 300 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 15 DB 20 DB 25 DB -15 5-20 -10 -5 0 5 Outdoor WB Temperature[ºC] CONTENT 10 15 SM DELTA 1-E.
PAGE 35
SOUND LEVEL CHARACTERISTICS 6. SOUND LEVEL CHARACTERISTICS 6.1 Sound Pressure Level 6.2 Figure 1. Wall Mounted Figure 2. Floor Mounted Figure 3. Ducted Figure 4. Cassette Soud Pressure Level Spectrum (Measured as Figure 1) MICRO AR0. 02 dB re , OCT VE BAN -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE -20NC Hz, AND CE TER FREQUENC ES FAN SPEED -70NC S UN S UN -70NC PRES URE L VEL Delta 25 MICRO AR0.
PAGE 36
SOUND LEVEL CHARACTERISTICS MICRO AR0. 02 dB re , OCT VE BAN S UN -70NC -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE -20NC PRES URE L VEL Delta 50 MICRO AR0. 02 dB re , OCT VE BAN S UN PRES URE L VEL Delta 35 Hz, AND CE TER FREQUENC ES FAN SPEED -70NC -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE -20NC Hz, AND CE TER FREQUENC ES LINE HI ME LO 6-2 CONTENT SM DELTA 1-E.
PAGE 37
SOUND LEVEL CHARACTERISTICS 6.3 Outdoor units Microphone Distance from Unit 6.4 Sound Pressure Level Spectrum (Measured as Figure 5) -70NC -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE -20NC PRES URE L VEL DCR 22 Heating MICRO AR0. 02 dB re , OCT VE BAN S UN MICRO AR0.
PAGE 38
SOUND LEVEL CHARACTERISTICS -70NC -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE -20NC PRES URE L VEL DCR 50 Heating MICRO AR0. 02 dB re , OCT VE BAN S UN MICRO AR0. 02 dB re , OCT VE BAN S UN PRES URE L VEL DCR 35 Cooling -70NC -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE Hz, AND CE TER FREQUENC ES Hz, AND CE TER FREQUENC ES -70NC -60NC -50NC -40NC -30NC -20NC PRES URE L VEL DCR 50 Heating MICRO AR0.
PAGE 39
ELECTRICAL DATA 7. ELECTRICAL DATA 7.1 Single Phase Units MODEL Delta 22 Delta 25 To indoor To indoor 1PH,220-240V,50Hz 1PH,220-240V,50Hz Max Current, A 5.2 6.3 Circuit Breaker,A Power Supply 12 12 Power Supply Wiring No. X Cross Section mm2 3x1.0 mm2 3x1.0 mm2 Interconnecting Cable RC Model No. X Cross Section mm2 4x1.0 mm2 4x1.0 mm2 MODEL Delta 35 Delta 50 To indoor To indoor Power Supply 1PH,220-240V,50Hz 1PH,220-240V,50Hz Max Current, A 7.5 10.
PAGE 40
% ODFN 5 HG % URZ Q 1 / &20 3 8 9 : 3 3 3 * UHHQ X) 9 FDSDFLWRU 3 + 2 ) $1 1 ( 8 75 $/ < *
PAGE 41
W hite B lack R ed B row n P14 B lue P4 1 2 P1 1 2 P6 1 2 3 4 5 6 1 2 3 4 5 6 P2 1 2 OAT P19 1 2 CONTENT Brown Blue Red Black Y/ G JP9 1 2 3 4 5 6 Jumper L-F N-F COM NCOM EARTH FUSE N COM L EARTH EMI f i l t er PCB EARTH L N COM N-COM Y/G P12 P10 Y/G Blue Brown Red N/3 L/4 C/5 EEV 6 5 4 3 2 1 P7 P8 1 2 Blue Brown Red Y/G JP1 1 2 3 4 Flash P20 1 2 OCT CTT Outdoor unit controller PCB U V W P3 P9 P11 P13 Base heater Vdc Red Reverse valve B la c
PAGE 42
REFRIGERATION DIAGRAMS 9. REFRIGERATION DIAGRAMS 9.1 Heat Pump Models 9.1.1 Delta 22 / DCR 22 DCI EEV EEV SM DELTA 1-E.
PAGE 43
REFRIGERATION DIAGRAMS 9.1.2 Delta 25, 35 / DCR 25, 35 DCI EEV EEV 9-2 CONTENT SM DELTA 1-E.
PAGE 44
REFRIGERATION DIAGRAMS 9.1.3 Delta 50 / DCR 50 DCI EEV EEV SM DELTA 1-E.
PAGE 45
TUBING CONNECTIONS 10. TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” 11-13 13-20 11-13 40-45 13-20 11-13 60-65 18-25 11-13 70-75 18-25 11-13 80-85 40-50 11-13 TORQUE (Nm) Flare Nuts Valve Cap Service Port Cap 1. 2. 3. 4. 5. 6. 7. 8.
PAGE 46
CONTROL SYSTEM 11. CONTROL SYSTEM 11.1 General Functions and Operating Rules The 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. 11.1.1 System Operation Concept The control function is divided between indoor and outdoor unit controllers.
PAGE 47
CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature (OAT): OAT Range Cool mode limits OAT < 6 No limit 6 ≤ OAT < 15 MaxFreqAsOATC 15 ≤ OAT < 28 28 ≤ OAT 11.1.4 Heat mode limits No limit MaxFreqAsOAT1H MaxFreqAsOAT2H Frequency Changes Control Frequency change rate is 1 Hz/sec. 11.1.5 Compressor Starting Control Frequency Step 3 Step 2 Step 1 1 Minute 1 Minute Time Min 10 Minutes 11.1.6 Minimum On and Off Time 3 minutes. 11.1.
PAGE 48
CONTROL SYSTEM 11.1.9 Heating Element Control Heating element can be started if LOAD > 0.8 * MaximumNLOAD AND Indoor Coil temperature < 45. The heating element will be stopped when LOAD < 0.5 * MaximumNLOAD OR if Indoor Coil temperature > 50. 11.1.10 Outdoor Fan Control • The OFAN motor is an AC type that operates with 2 speeds (Low/High), controlled by Relays. • OFAN speed depends on the compressor Target Frequency, and it’s set according to the following table and graphs.
PAGE 49
CONTROL SYSTEM 11.1.1 EEV (electronic Expansion valve) Control EEV opening is deﬁned as EEV = EEVOL + EEVCV EEVOL is the initial EEV opening as a function of the compressor frequency, operation mode, unit model and capacity. EEVCV is a correction value for the EEV opening that is based on the compressor temperature. During the ﬁrst 5 minutes of compressor operation EEVCV = 0.
PAGE 50
CONTROL SYSTEM 11.4.2 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature: ICTST 11.5 ICTVL ICTL ICTH ICTT 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 (ΔT). Unit will switch from cool to heat when compressor is off for 3 minutes, and ΔT < -3.
PAGE 51
CONTROL SYSTEM 11.7.2 Indoor Coil over Heating Protection ICT Trend ICT ICT > 55 53 < ICT ≤ 55 49 < ICT ≤ 53 47 < ICT ≤ 49 45 < ICT ≤ 47 43 < ICT ≤ 45 ICT ≤ 43 11.7.3 Fast Decreasing SC D1 SR SR Norm Norm Decreasing No Change Increasing SC D1 SR SR Norm Norm SC D2 D1 SR SR Norm Normal SC D2 D2 D1 SR SR Fast Increasing SC D2 D2 D2 D1 SR Compressor over Heating Protection Compressor temperature can be in one of 5 control zones (4 in protection, and 1 normal), according to the following chart.
PAGE 52
CONTROL SYSTEM 11.7.4 Compressor over Current Protection CCR Stop-Compresor CCROC4 HzDown2 CCROC3 HzDown1 CCROC2 Stop-Rise CCROC1 Normal 11.7.5 Heat Sink Over Heating Protection (NA for DCI 25 and 35) HST HST > 90 85 < HST ≤ 90 82 < HST ≤ 85 80 < HST ≤ 82 78 < HST ≤ 80 HST Trend No Change SC D2 D1 SR Norm Decreasing SC D1 SR SR Norm HST ≤ 78 11.7.
PAGE 53
CONTROL SYSTEM Deicing Protection Procedure OCT 12 0 Threshold COMP ON T1 T2 T1 max. 12 minutes RV COOL OFAN DT HEAT T3 T3 ON OFF EEVDeicerOpen EEV Any T1 =60 seconds, T2 = 36 seconds, T3 = 6 seconds 11-8 CONTENT SM DELTA 1-E.
PAGE 54
CONTROL SYSTEM 11.8 Operating the Unit from the Mode Button Forced operation allows to start, stop and operate in Cooling or Heating, in pre-set temperature according to the following table: 11.9 Forced operation Mode Pre-set Temperature Cooling 200C Heating 280C On Unit Controls and Indicators The following is schematic drawing for the display: STBY/OPER Mode/Reset Button Infra Red Receiver SM DELTA 1-E.
PAGE 55
CONTROL SYSTEM STAND BY INDICATOR OPERATION INDICATOR 1. Lights up when the Air Conditioner is connected to power and the mode is STBY. 2. Blinks for 3 seconds, when the system is switched to Heat Mode by using the Mode/Reset Switch on the unit (the operation indicator will be off during this blinking time). 1. Lights up during operation mode (except for item in STBY indicator). 2. Blinks for 300 msec., to announce that a R/C infrared signal has been received and stored. 3.
PAGE 56
CONTROL SYSTEM 11.10 Outdoor Unit Controller Indicators Unit has three LED’s. SB LED, STATUS LED, FAULT LED. SB LED is ON when power is ON (230 VAC), 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. 11.11 11.11.
PAGE 57
CONTROL SYSTEM 11.12 SW Parameters 11.12.
PAGE 58
CONTROL SYSTEM 11.12.
PAGE 59
CONTROL SYSTEM 11.12.
PAGE 60
TROUBLESHOOTING 12. TROUBLESHOOTING WARNING!!! When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH VOLTAGE!!! Never open the Outdoor unit before turning off the Power!!! When turned off, the system is still charged (400V)!!! It takes about 4 Min. to discharge the system. Touching the controller before discharging may cause an electrical shock!!! 12.1 Single Split system failures and corrective actions No SYMPTOM 1 Power supply indicator (Red LED) does not light up.
PAGE 61
TROUBLESHOOTING No 9 10 11 12 13 14 15 16 12.
PAGE 62
TROUBLESHOOTING 12.3 Judgment by Indoor/Outdoor Unit Diagnostics Enter diagnostics mode - press for five seconds Mode/Reset button in any operation mode. Acknowledgment is by 3 short beeps and lights of all Display LED’s. Then, The units will enter into Indoor and Outdoor unit diagnostic modes. During the Outdoor unit diagnostics all three Indoor LED’s (STBY/Operate, Filter and Timer) are blinking. When Indoor diagnostics is displayed, all three LED’s (STBY/Operate, Filter and Timer) are ON.
PAGE 63
TROUBLESHOOTING 12.3.2 No. 1 2 3 4 5 6 7 8 9 Indoor unit diagnosis and corrective actions Fault Probable Cause Sensor failures of all types Indoor and Outdoor controllers are Communication with different versions mismatch No Communication Communication or grounding wiring is not good.
PAGE 64
TROUBLESHOOTING DCR50 diagnostics: No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 27 Problem OCT is disconnected OCT is shorted CTT is disconnected CTT is shorted HST is disconnected (when enabled) HST is shorted (when enabled) OAT is disconnected (when enabled) OAT is shorted (when enabled) TSUC is disconnected (when enabled) TSUC is shorted (when enabled) IPM Fault Bad EEPROM DC under voltage DC over voltage AC under voltage Indoor / Outdoor unit Communication mismatch No Communica
PAGE 65
TROUBLESHOOTING 12.3.4 NO 1 Outdoor unit diagnosis and corrective actions Probable Cause Fault Sensors failures of all types Electronics HW problem 2 IPM Fault 3 Bad EEPROM 4 DC under/over Voltage 5 AC under Voltage 6 Indoor / Outdoor unit Communication mismatch 7 No Communication 8 Compressor Lock 9 Bad Communication 12.4 Electronics HW problem Indoor and Outdoor controllers are with different versions Communication or grounding wiring is not good.
PAGE 66
TROUBLESHOOTING 12.5.2 Checking Power Input. If Indoor unit power LED is unlighted, power down the system and check the fuse of the Indoor unit. If the fuse is OK replace the Indoor unit controller. If the fuse has blown, replace the fuse and power up again. Checking Power Input procedure for the Outdoor unit is the same as with the Indoor unit. 12.5.3 Checking the Outdoor Fan Motor.
PAGE 67
EXPLODED VIEWS AND SPARE PARTS LISTS 13. EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Indoor Unit: Delta 22, 25, 35 DCI SM DELTA 1-E.
PAGE 68
EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 13-2 Intdoor Unit: Delta 22, 25 DCI No. Part No. Name Quan. 1 453037000 Grill A / DELTA 22,25 1 2 453100500 Grill L axis 1 3 453100600 Grill R axis 1 4 453036500 Filter for DELTA 7/9 2 7 465720000 Silk-screen front frame for Electra 1 8 4525987 SCREW COVER 3 9 453070701 Evap. System Assy./DELTA 22,25 1 10 4523526 BERAING ASSY FAN 1 11 4523523 FAN ASSY PLASTIC 1 12 452784400 IOD-7,9 Air Outlet Assy.
PAGE 69
EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Indoor Unit: Delta 35 DCI No. Part No. Name Quan. 1 453036800 Grill A / DELTA 12 1 2 453100500 Grill L axis 1 3 453100600 Grill R axis 1 4 453082900 Filter for DELTA 12 2 7 465720001 Silk-screen front frame for Electra 1 8 4525987 SCREW COVER 3 9 453058201 Evap. System Assy./DELTA 35 1 10 4523526 BERAING ASSY FAN 1 11 4527111 FAN ASSY PLASTIC 1 12 452784401 IOD-12 Air Outlet Assy.
PAGE 70
EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 Indoor Unit: Delta 50 DCI 1 2 28 3 27 4 26 25 5 24 23 6 22 21 7 8 20 19 9 18 10 11 17 16 12 15 13 14 13-4 CONTENT SM DELTA 1-E.
PAGE 71
EXPLODED VIEWS AND SPARE PARTS LISTS 13.5 Indoor Unit: Delta 50 DCI No. Part No. Name 1 465800000 Grill A Assy./Delta 50 1 2 453080800 Filter 2 3 470500003 Filter Assy. 1 4 465720020 Front Frame Assy./Delta 50 AIRWELL FOR EU 1 5 453081000 Screw Cover 3 6 462350006 Evaporator Assy. 1 7 4518662 Bearing assy fan 1 8 453082400 Impeller Fan 1 9 467300007 Display Board Assy./DELTA EHK: 936-035-00 1 10 453101600 Air Outlet Frame Assy.
PAGE 72
EXPLODED VIEWS AND SPARE PARTS LISTS 13-6 15 30 29 1 2 28 3 27 26 4 5 6 25 7 24 23 8 9 10 22 11 12 13 14 16 17 20 19 18 Outdoor Unit: DСR 22, 25, 35 DCI 21 13.6 CONTENT SM DELTA 1-E.
PAGE 73
EXPLODED VIEWS AND SPARE PARTS LISTS 13.7 Outdoor Unit: DСR 22 DCI No. Part No. Name 1 4522551 Grille A of GCN 1 2 4523441 Front panel A Painting assy 1 3 4519251 Axial Fan OD=400 1 4 453238900 Sensor/OAT 1 5 4526775 Compressor top thermistor(CTT) 1 6 4526776 Outdoor coil thermistor(OCT) 1 7 453170100 Compressor Assy. MATSUSHIBA 5RS092XDJ01 1 8 453052500 PAINTING BASE ASSY.
PAGE 74
EXPLODED VIEWS AND SPARE PARTS LISTS 13.8 Outdoor Unit: DСR 25 DCI No. 13-8 Part No. Name Quan. 1 4522551 Grille A of GCN 1 2 4523441 Front panel A Painting assy 1 3 4519251 Axial Fan OD=400 1 4 453238900 Sensor/OAT 1 5 4526775 Compressor top thermistor(CTT) 1 6 4526776 Outdoor coil thermistor(OCT) 1 7 453170100 Compressor Assy. MATSUSHIBA 5RS092XDJ01 1 8 453052500 PAINTING BASE ASSY.
PAGE 75
EXPLODED VIEWS AND SPARE PARTS LISTS 13.9 Outdoor Unit: DСR 35 DCI No. Part No. Name 1 4522551 Grille A of GCN 1 2 4523441 Front panel A Painting assy 1 3 4519251 Axial Fan OD=400 1 4 453238900 Sensor/OAT 1 5 4526775 Compressor top thermistor(CTT) 1 6 4526776 Outdoor coil thermistor(OCT) 1 7 4526204 Compressor Assy. MATSUSHIBA 5RS102XAB 1 8 453052500 PAINTING BASE ASSY.
PAGE 76
EXPLODED VIEWS AND SPARE PARTS LISTS 13.10 13-10 Outdoor Unit: DCR 50 DCI CONTENT SM DELTA 1-E.
PAGE 77
EXPLODED VIEWS AND SPARE PARTS LISTS 13.11 Outdoor Unit: DСR 50 DCI No. Part No. Name Quan. 1 433219 Front Panel A1 1 2 4526340 Air inlet ring-420 1 3 433223 Painting Insulation Plate 1 4 4526476 Axial fan OD=401 1 5 452889600R DC Resin Motor(Nidec) 1 6 433215 Motor Support 1 7 4527363 Base Painting Assy. 1 8 4526299 Partition 1 9 453030500R Outdoor DCI Controller/2.
PAGE 78
APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► OPERATING MANUAL DELTA 22/25/35/50 DCI ► INSTALLATION MANUAL DELTA 22/25/35/50 DCI SM DELTA 1-E.