Daikin VAM 350GJVE User manual

Si71 - 502
Heat Reclaim Ventilation
[Applied Models]
VAM 150GJVE
VAM 250GJVE
VAM 350GJVE
VAM 500GJVE
VAM 650GJVE
VAM 800GJVE
VAM1000GJVE
VAM1500GJVE
VAM2000GJVE
The specifications, designs, and information in this brochure are subject to change without notice.
All rights reserved
c
Dealer
Head Office:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan
Tokyo Office:
JR Shinagawa East Bldg., 2-18-1, Konan,
Minato-ku, Tokyo, 108-0075 Japan
http://www.daikin.com/global/
1. Air conditioners should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced.
2. If the outdoor unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided and choose an
outdoor unit with anti-corrosion treatment.
Cautions on product corrosion
Ask a qualified installer or contractor to install this product. Do not try to install the product yourself.
Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion.
Use only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or
contractor to install those parts and accessories. Use of unauthorized parts and accessories or
improper installation of parts and accessories can result in water or refrigerant leakage, electrical
shock, fire or explosion.
Read the User's Manual carefully before using this product. The User's Manual provides important
safety instructions and warnings. Be sure to follow these instructions and warnings.
For any inquiries, contact your local distributor.
Printed in Japan 03/2006 AK
Service Manual Heat Reclaim Ventilation Si71-502

Si71-502
Table of Contents i
Heat Reclaim Ventilation
Heat Reclaim VentilationHeat Reclaim Ventilation
Heat Reclaim Ventilation
VAM 150GJVE
VAM 250GJVE
VAM 350GJVE
VAM 500GJVE
VAM 650GJVE
VAM 800GJVE
VAM1000GJVE
VAM1500GJVE
VAM2000GJVE

Si71-502
ii Table of Contents
1. Introduction .............................................................................................v
1.1 Safety Cautions ........................................................................................v
Part 1 General Constructions ....................................................... 1
1. General Constructions ............................................................................2
1.1 Explanation...............................................................................................2
Part 2 Product Specification ........................................................ 5
1. Product Specification ..............................................................................6
1.1 Specification .............................................................................................6
Part 3 Operation............................................................................ 9
1. Operation ..............................................................................................10
1.1 Explanation for Systems.........................................................................10
1.2 Operation HRV Units with the Remote Control exclusively for
Air Conditioning Operation. (BRC301B61).............................................11
1.3 Operating the HRV Unit Using the Remote Controller of the
VRV-System Air Conditioner ..................................................................13
1.4 Independent operation of the HRV unit using the
Centralized controller (DCS302C(A)61) .................................................14
Part 4 Maintenance..................................................................... 15
1. Maintenance..........................................................................................16
1.1 Maintenance for the Air Filter .................................................................16
1.2 Maintenance for the Heat Exchange Element........................................19
Part 5 Control Functions............................................................. 21
1. Control Functions ..................................................................................22
1.1 List of Control Functions.........................................................................22
1.2 Explanation of Individual Functions........................................................23
1.3 Layout of switches on Printed Circuit Board...........................................29
Part 6 Circuit Operations ............................................................ 31
1. Circuit Operations .................................................................................32
1.1 Circuit Configuration...............................................................................32
1.2 Circuit Functions.....................................................................................33
Part 7 Troubleshooting ............................................................... 35
1. Troubleshooting ....................................................................................36
1.1 Error Code Indication .............................................................................36
1.2 Overall Alarm..........................................................................................37
1.3 Overall Malfunction.................................................................................38
1.4 Indoor Air Thermistor Error.....................................................................39
1.5 Outdoor Air Thermistor Error..................................................................40
1.6 Damper System Error (Alarm)................................................................41
1.7 Damper System Error (Alarm)................................................................42
1.8 Dedicated LCD Remote Controller.........................................................43

Si71-502
Table of Contents iii
1.9 Data Transmission Error
(Between LCD Remote Controller and Main Unit) .................................44
1.10 Data Transmission Error (LCD Remote Controller)................................45
1.11 Data Transmission Error (Between LCD Master Remote Controller
and Slave Remote Controller) ................................................................46
1.12 Field Setting Error ..................................................................................47
1.13 Overlapping Central Control Address.....................................................48
1.14 Main Unit PCB Assembly .......................................................................49
1.15 Dedicated LCD Remote Controller.........................................................50
1.16 How to Check .........................................................................................51
1.17 Thermistor ..............................................................................................52
1.18 Power Transformer.................................................................................53
1.19 Damper Motor ........................................................................................54
Part 8 Supplementary Explanation............................................. 55
1. Supplementary Explanation ..................................................................56
1.1 Field Setting, Service Mode Operation...................................................56
Part 9 Operation Manual ............................................................. 65
1. Safety Cautions.....................................................................................68
2. What to do Before Operation ................................................................71
2.1 Names of Parts.......................................................................................71
2.2 Remote Controller and Changeover Switch:
Name and Function of Each Switch and Display ...................................73
2.3 Explanation for Systems.........................................................................76
3. Operation Procedure.............................................................................78
3.1 Independent, Combined Operation ........................................................78
3.2 Programming Start and Stop of the System with Timer .........................82
3.3 Nighttime Free Cooling Operation..........................................................84
4. Maintenance (for a Qualified Service Person Only) ..............................85
4.1 How to Clean the Air Filter .....................................................................85
4.2 Optimum Operation ................................................................................87
4.3 How to Clean the Heat Exchange Element ............................................88
4.4 Inspection of the Fan Moter....................................................................89
5. Troubleshooting ....................................................................................90
5.1 The Following Situations are not Malfunctions.......................................90
5.2 If One of the Following Malfunctions Occurs, Take the
Measures Shown Below and Contact Your Daikin Dealer .....................90
5.3 If the System does not Properly Operate Except for the above Mentioned
Case, and None of the above Mentioned Malfunctions is Evident,
Investigate the System According to the Following Procedures. ...........91
5.4 The Following Malfunctions must be Cheched by a
Qualified Service Person........................................................................92
5.5 If the System does not Properly Operate Except for the above Mentioned
Case, and None of the above Mentioned Malfunctions is Evident, Contact
Your Dealer, and Request for Investigation the System According to
the Following Procedures by a Qualified Service Person ......................92
6. After-sales Service ................................................................................93

Si71-502
iv Table of Contents
Part 10Appendix........................................................................... 95
1. Appendix ...............................................................................................96
1.1 Wiring Diagram.......................................................................................96
Index ............................................................................................. i
Drawings & Flow Charts ...............................................................iii

Si71-502 Introduction
v
1. Introduction
1.1 Safety Cautions
Cautions and
Warnings
Be sure to read the following safety cautions before conducting repair work.
The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items
are especially important since they can lead to death or serious injury if they are not followed closely.
The “ Caution” items can also lead to serious accidents under some conditions if they are not
followed. Therefore, be sure to observe all the safety caution items described below.
About the pictograms
This symbol indicates an item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
This symbol indicates a prohibited action.
The prohibited item or action is shown inside or near the symbol.
This symbol indicates an action that must be taken, or an instruction.
The instruction is shown inside or near the symbol.
After the repair work is complete, be sure to conduct a test operation to ensure that the equipment
operates normally, and explain the cautions for operating the product to the customer.

Introduction Si71-502
vi
1.1.1 Cautions in Operation and Maintenance

Si71-502 Introduction
vii

Introduction Si71-502
viii
1.1.2 Using Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each icon is
described in the table below:
1.1.3 Using Icons List
Icon Type of
Information
Description
Note:
Note A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
Caution
Caution A “caution” is used when there is danger that the reader, through
incorrect manipulation, may damage equipment, loose data, get an
unexpected result or has to restart (part of) a procedure.
Warning
Warning A “warning” is used when there is danger of personal injury.
Reference A “reference” guides the reader to other places in this binder or in this
manual, where he/she will find additional information on a specific topic.

Si71-502
General Constructions 1
Part 1
Part 1Part 1
Part 1
General Constructions
General ConstructionsGeneral Constructions
General Constructions
1. General Constructions ............................................................................2
1.1 Explanation...............................................................................................2

General Constructions Si71-502
2General Constructions
1. General Constructions
1.1 Explanation
VAM150GJVE
VAM250GJVE
VAM350GJVE
VAM500GJVE
VAM650GJVE
VAM800GJVE
VAM1000GJVE
1Hanger Bracket 2Duct Connection Flange
3Exhaust Fan 4Air Filter (Long Life Filter)
5Damper 6Control Box
7Maintenance Cover 8Heat Exchange Elements
9Name Plate 10 Air Supply Fan
11 Remote Controller (Option Accessory) 12 Damper Plate
13 EA (Exhaust Air) [Exhaust Air to Outdoor] 14 OA (Outdoor Air) [Fresh Air from Outdoor]
15 Maintenance Space for The Air Filters, Heat
Exchange Elements and Control Box
16 RA (Return Air) [Exhaust Air from Room]
17 SA (Supply Air) [Feed Air to Room]
(HL002)
12
13
14
16
17
15

Si71-502 General Constructions
General Constructions 3
VAM1500GJVE
VAM2000GJVE
1H Hock 2Duct Connection Flange
3Exhaust Fan 4Air Filter (Long Life Filter)
5Damper 6Control Box
7Maintenance Cover 8Heat Exchange Elements
9Name Plate 10 Air Supply Fan
11 Remote Controller (Option Accessory) 12 Damper Plate
13 EA (Exhaust Air) [Exhaust Air to Outdoor] 14 OA (Outdoor Air) [Fresh Air from Outdoor]
15 Maintenance Space for The Air Filters, Heat
Exchange Elements and Control Box
16 RA (Return Air) [Exhaust Air from Room]
17 SA (Supply Air) [Feed Air to Room]
(HL016)
1
7
9
6
10
3
2
5
4
8
11
12
13
14
16
17
15
(HL017)

General Constructions Si71-502
4General Constructions

Si71-502
Product Specification 5
Part 2
Part 2Part 2
Part 2
Product Specification
Product SpecificationProduct Specification
Product Specification
1. Product Specification ..............................................................................6
1.1 Specification .............................................................................................6

Product Specification Si71-502
6Product Specification
1. Product Specification
1.1 Specification
Test conditions are as follows.
Note: 1. Operation sound is measured at 1.5 m below the center of the body.
2. Air flow rate can be changed over to Low mode or High mode.
3. Normal AMP., input, efficiency depend on the other above conditions.
4. Operating sound is measured in an anechoic chamber.
Operating sound level generally may become greater than this value depending on the operating
conditions, reflected sound, and peripheral noise.
5. The sound level at the air discharge port is about 8 dB higher than the unit’s operating sound.
6. The specifications, designs and information here are subject to change without notice.
7. Temperature Exchange Efficiency is the mean value in cooling and heating.
8. Efficiency is measured under the following conditions.
Ratio of rated external static pressure has been kept as follows. Outdoor side to indoor side = 7 to 1
(50 / 60Hz)
Model name VAM150GJVE VAM250GJVE VAM350GJVE
Power supply Single phase 220 –240 V / 220 V, 50 / 60 Hz
Temperature exchange efficiency Ultra-High % 79 / 79 75 / 75 79 / 79
High % 79 / 79 75 / 75 79 / 79
Low % 84 / 85 79 / 79 82 / 82
Enthalpy
exchange
efficiency
Cooling Ultra-High % 66 / 66 63 / 63 66 / 66
High % 66 / 66 63 / 63 66 / 66
Low % 70 / 70.5 66 / 66 70 / 70
Heating Ultra-High % 72 / 72 71 / 71 70 / 70
High % 72 / 72 71 / 71 70 / 70
Low % 76 / 76.5 74 / 74 77 / 77
Casing Galvanized steel plate
Insulation material Self-extinguishable urethane foam
Dimensions H ×W ×D mm 278 ×810 ×551 278 ×810 ×551 306 ×879 ×800
Heat exchange system Air to air cross flow total heat (sensible heat + latent heat) exchange
Heat exchange element Specially processed nonflammable paper
Air filter Multidirectional fibrous fleeces
Fan Type Sirroco fan
Air flow
rate Heat exchange
mode
Ultra-High m3/ h 150 / 150 250 / 250 350 / 350
High m3/ h 150 / 150 250 / 250 350 / 350
Low m3/ h 100 / 95 155 / 155 230 / 230
External static pressure Ultra-High Pa 120 / 154 70 / 96 169 / 222
High Pa 106 / 131 54 / 65 141 / 145
Low Pa 56 / 60 24 / 20 67 / 30
Fan motor Type Open type capacitor permanent split-phase induction motor, 4 poles ×2
Motor output kW 0.030 ×2 0.030 ×2 0.090 ×2
Operating
sound Heat exchange mode Ultra-High dBA 27 –28.5 / 28.5 27 –29 / 29 31.5 –33 / 33
High dBA 26 –27.5 / 27.5 26 –27.5 / 28 30 –31.5 / 30
Low dBA 20.5 –21.5 / 21 21 –22 / 21 23 –25 / 23
Bypass mode Ultra-High dBA 28.5 –29.5 / 29.5 28.5 –30.5 / 30.5 33 –34.5 / 34.5
High dBA 27.5 –28.5 / 28.5 27.5 –29 / 29.5 31.5 –33 / 31.5
Low dBA 22.5 –23.5 / 22 22.5 –23 / 22.5 24.5 –26.5 / 24.5
Operation range (Ambient) –15°C to 50°CDB (80% RH or less)
Connection duct diameter mm φ100 φ150 φ150
Weight kg 24 24 32
Drawing number C : 4D051116 C : 4D051117 C : 4D051118
Condition Indoor Outdoor
°CDB R·H (%) °CDB R·H (%)
Cooling condition 27 50 35 60
Heating condition 20 40 7 70

Si71-502 Product Specification
Product Specification 7
Test conditions are as follows.
Note: 1. Operation sound is measured at 1.5 m below the center of the body.
2. Air flow rate can be changed over to Low mode or High mode.
3. Normal AMP., input, efficiency depend on the other above conditions.
4. Operating sound is measured in an anechoic chamber.
Operating sound level generally may become greater than this value depending on the operating
conditions, reflected sound, and peripheral noise.
5. The sound level at the air discharge port is about 8 dB higher than the unit’s operating sound.
6. The specifications, designs and information here are subject to change without notice.
7. Temperature Exchange Efficiency is the mean value in cooling and heating.
8. Efficiency is measured under the following conditions.
Ratio of rated external static pressure has been kept as follows. Outdoor side to indoor side = 7 to 1
(50 / 60Hz)
Model name VAM500GJVE VAM650GJVE VAM800GJVE
Power supply Single phase 220 –240 V / 220 V, 50 / 60 Hz
Temperature exchange efficiency Ultra-High % 74 / 74 75 / 75 72 / 72
High % 74 / 74 75 / 75 72 / 72
Low % 80 / 80.5 77 / 77.5 74 / 74.5
Enthalpy
exchange
efficiency
Cooling Ultra-High % 55 / 55 61 / 61 61 / 61
High % 55 / 55 61 / 61 61 / 61
Low % 59 / 59.5 64 / 64.5 64 / 64.5
Heating Ultra-High % 67 / 67 67.5 / 67.5 65 / 65
High % 67 / 67 67.5 / 67.5 65 / 65
Low % 74 / 74.5 71.5 / 72 67.5 / 68
Casing Galvanized steel plate
Insulation material Self-extinguishable urethane foam
Dimensions H ×W ×D mm 306 ×879 ×800 338 ×973 ×832 387 ×1,111 ×832
Heat exchange system Air to air cross flow total heat (sensible heat + latent heat) exchange
Heat exchange element Specially processed nonflammable paper
Air filter Multidirectional fibrous fleeces
Fan Type Sirroco fan
Air flow
rate Heat exchange
mode
Ultra-High m3/ h 500 / 500 650 / 650 800 / 800
High m3/ h 500 / 500 650 / 650 800 / 800
Low m3/ h 320 / 295 500 / 470 700 / 670
External static pressure Ultra-High Pa 105 / 150 85 / 125 133 / 170
High Pa 66 / 52 53 / 67 92 / 85
Low Pa 32 / 18 35 / 38 72 / 61
Fan motor Type Open type capacitor permanent split-phase induction motor, 4 poles ×2
Motor output kW 0.090 ×2 0.140 ×2 0.280 ×2
Operating
sound Heat exchange mode Ultra-High dBA 33 –35.5 / 34 34 –36 / 36 39 –40.5 / 39.5
High dBA 31.5 –34 / 32 33 –34.5 / 34 37 –39.5 / 37.5
Low dBA 25 –28.5 / 24 27.5 –29.5 / 28 35 –37.5 / 34
Bypass mode Ultra-High dBA 34.5 –36 / 35.5 35 –37.5 / 37.5 40.5 –42 / 41
High dBA 33 –34.5 / 33.5 33 –35.5 / 35.5 38.5 –40 / 39
Low dBA 25.5 –28.5 / 25.5 27.5 –30.5 / 29.5 36 –38.5 / 35.5
Operation range (Ambient) –15°C to 50°CDB (80% RH or less)
Connection duct diameter mm φ200 φ200 φ250
Weight kg 32 45 55
Drawing number C : 4D051120 C : 4D051121 C : 4D051122
Condition Indoor Outdoor
°CDB R·H (%) °CDB R·H (%)
Cooling condition 27 50 35 60
Heating condition 20 40 7 70

Product Specification Si71-502
8Product Specification
Test conditions are as follows.
Note: 1. Operation sound is measured at 1.5 m below the center of the body.
2. Air flow rate can be changed over to Low mode or High mode.
3. Normal AMP., input, efficiency depend on the other above conditions.
4. Operating sound is measured in an anechoic chamber.
Operating sound level generally may become greater than this value depending on the operating
conditions, reflected sound, and peripheral noise.
5. The sound level at the air discharge port is about 8 dB higher than the unit’s operating sound.
6. The specifications, designs and information here are subject to change without notice.
7. Temperature Exchange Efficiency is the mean value in cooling and heating.
8. Efficiency is measured under the following conditions.
Ratio of rated external static pressure has been kept as follows. Outdoor side to indoor side = 7 to 1
(50 / 60Hz)
Model name VAM1000GJVE VAM1500GJVE VAM2000GJVE
Power supply Single phase 220 –240 V / 220 V, 50 / 60 Hz
Temperature exchange efficiency Ultra-High % 78 / 78 72 / 72 77 / 77
High % 78 / 78 72 / 72 77 / 77
Low % 80.5 / 81 75.5 / 76 79 / 81
Enthalpy
exchange
efficiency
Cooling Ultra-High % 64 / 64 61 / 61 62 / 62
High % 64 / 64 61 / 61 62 / 62
Low % 68.5 / 69 64 / 64.5 66 / 67
Heating Ultra-High % 70 / 70 65 / 65 72 / 72
High % 70 / 70 65 / 65 72 / 72
Low % 72.5 / 73 67 / 67.5 75 / 76
Casing Galvanized steel plate
Insulation material Self-extinguishable urethane foam
Dimensions H ×W ×D mm 387 ×1,111×1,214 785 ×1,619 ×832 785 ×1,619 ×1,214
Heat exchange system Air to air cross flow total heat (sensible heat + latent heat) exchange
Heat exchange element Specially processed nonflammable paper
Air filter Multidirectional fibrous fleeces
Fan Type Sirroco fan
Air flow
rate Heat exchange
mode
Ultra-High m3/ h 1,000 / 1,000 1,500 / 1,500 2,000 / 2,000
High m3/ h 1,000 / 1,000 1,500 / 1,500 2,000 / 2,000
Low m3/ h 860 / 840 1,320 / 1,260 1,720 / 1,580
External static pressure Ultra-High Pa 168 / 192 112 / 150 116 / 140
High Pa 110 / 86 73 / 72 58 / 32
Low Pa 85 / 60 56 / 50 45 / 45
Fan motor Type Open type capacitor permanent split-phase induction motor, 4 poles ×2
Motor output kW 0.280 ×2 0.280 ×4 0.280 ×4
Operating
sound Heat exchange mode Ultra-High dBA 39.5 –41.5 / 39.5 39.5 –41.5 / 41.5 41.5 –43.5 / 42
High dBA 37.5 –39.5 / 37.5 37.5 –39.5 / 39.5 39 –43 / 40
Low dBA 35 –37.5 / 34.5 35 –37.5 / 36 36 –39 / 39
Bypass mode Ultra-High dBA 40.5 –42.5 / 40.5 41 –43 / 42.5 43 –45.5 / 44
High dBA 38.5 –40.5 / 38.5 39.5 –41 / 41.5 40.5 –45 / 42
Low dBA 36 –38.5 / 35.5 36.5 –38 / 37.5 37.5 –39.5 / 41
Operation range (Ambient) –15°C to 50°CDB (80% RH or less)
Connection duct diameter mm φ250 φ350 φ350
Weight kg 67 129 157
Drawing number C : 4D051123 C : 4D051119 C : 4D051124
Condition Indoor Outdoor
°CDB R·H (%) °CDB R·H (%)
Cooling condition 27 50 35 60
Heating condition 20 40 7 70

Si71-502
Operation 9
Part 3
Part 3Part 3
Part 3
Operation
OperationOperation
Operation
1. Operation ..............................................................................................10
1.1 Explanation for Systems.........................................................................10
1.2 Operation HRV Units with the Remote Control exclusively for
Air Conditioning Operation. (BRC301B61).............................................11
1.3 Operating the HRV Unit Using the Remote Controller of the
VRV-System Air Conditioner ..................................................................13
1.4 Independent operation of the HRV unit using the
Centralized controller (DCS302C(A)61) .................................................14

Operation Si71-502
10 Operation
1. Operation
1.1 Explanation for Systems
This product is operated differently depending on the system configuration.
For the operation of the remote controller for indoor unit and centralized controller, refer to the instruction
manual provided with each unit.
Operation for Each System
System Example Operation Method
Independent
System
The remote controller turns on and off the air
conditioner and HRV unit.
Combined
Operation
System with VRV
Systems and
Skyair Series
The remote controller for VRV turns on and off
the air conditioner and HRV unit.
If only the HRV unit is used without operating
the air conditioner, set the unit in the “”
VENTILATION mode.
Centralized
System
When the HRV remote controllers is not
connected, the Centralized controller controls
the operation of the HRV unit.
When the HRV remote controllers is connected,
operation can be started and stopped using the
Centralized controller or the indoor and the HRV
remote controllers.
During the indication of centralized control
“”appears on the display, the ON/
OFF and timer operation may not be possible
with the HRV remote controllers. Other
operations can be performed using the HRV
remote controllers.

Si71-502 Operation
Operation 11
1.2 Operation HRV Units with the Remote Control exclusively for Air Conditioning
Operation. (BRC301B61)
For non-independent systems, starting/stopping operation and timer operation may not be possible.
Use the air conditioner remote control or the Centralized controller in such cases.
Remote Controller
for HRV
BRC301B61
Operation for
INDIVIDUAL
SYSTEM
1. Operation lamp
This pilot lamp (red) light up while the unit is in Operation.
2. Operation/Stop button
When pushed once, the unit starts operating.
When pushed twice, the unit stops.
3. Air flow rate changeover button
Air flow rate can be changed over to “”
[Low] mode or “” [High] mode, “FRESH UP”
[Low FRESH UP] mode, “FRESH UP”[High FRESH UP] mode.
For “FRESH UP”operation
When this indication does not show: The volume of outdoor air supplied into the room and that of the room
air exhausted outdoors is equivalent.
For “FRESH UP”operation,
If it is set to “Fresh up air supply”: The volume of outdoor air supplied into the room is larger than that of
room air exhausted outdoors.
(This operation prevents the odor and moisture from kitchens and toilets from flowing into the rooms.
If it is set to “Fresh up air exhaust”: The volume of room air exhausted outdoors is larger than that of
outdoor air supplied into the room.
(This operation prevents the hospital odor and floating bacteria from flowing out to the corridors.)
12
75
6
11
12
13
10
8
4
3
9
(HL006)