Safety Considerations - Daikin ERQ Service Manual

ERQ100A7V1B
ERQ125A7V1B
ERQ140A7V1B
C
ONTENTS
1. Safety considerations............................................................. 121
2. Introduction ............................................................................ 122
2.1. Combination ............................................................................... 122
2.2. Standard supplied accessories................................................... 123
2.3. Technical and electrical specifications ....................................... 123
3. Before installation .................................................................. 123
3.1. Precautions for R410A ............................................................... 123
3.2. Installation .................................................................................. 123
3.3. Handling ..................................................................................... 123
4. Selecting installation site........................................................ 123
5. Precautions on installation ..................................................... 124
5.1. Installation method for prevention of falling over........................ 125
5.2. Method for removing transportation stay.................................... 125
5.3. Method for installing drain piping................................................ 125
6. Installation servicing space .................................................... 125
7. Refrigerant pipe size and allowable pipe length .................... 126
7.1. Selection of piping material ........................................................ 126
8. Precautions on refrigerant piping ........................................... 126
8.1. Cautions for brazing ................................................................... 127
8.2. Cautions for flare connection ..................................................... 127
9. Refrigerant piping................................................................... 127
9.1. Preventing foreign objects from entering.................................... 128
9.2. Cautions for handling stop valve ................................................ 128
9.3. How to use the stop valve .......................................................... 128
9.4. Cautions for handling the valve cover ........................................ 128
9.5. Cautions for handling service port.............................................. 128
9.6. Precautions when connecting field piping and
regarding insulation .................................................................... 129
9.7. Leak test and vacuum drying ..................................................... 129
10. Additional refrigerant charge.................................................. 129
10.1. Important information regarding the refrigerant used ................. 130
10.2. 2 procedures for adding refrigerant ............................................ 131
11. Electrical wiring work ............................................................. 131
11.1. Internal wiring - Parts table........................................................ 131
11.2. Precautions on electrical wiring work ......................................... 132
11.3. Connection example of total system wiring ................................ 133
11.4. Connecting power wire and transmission wires ......................... 133
11.5. Power circuit and cable requirements ........................................ 133
12. Before operation .................................................................... 135
12.1. Service precautions.................................................................... 135
12.2. Checks before initial start-up...................................................... 135
12.3. Field setting................................................................................ 135
12.4. Test operation............................................................................. 137
12.5. Checks in normal operation ....................................................... 138
12.6. Temperature adjustment operation confirmation ........................ 138
13. Service mode operation ......................................................... 138
14. Caution for refrigerant leaks................................................... 139
14.1. Introduction ................................................................................ 139
14.2. Maximum concentration level..................................................... 139
14.3. Procedure for checking maximum concentration ....................... 139
15. Disposal requirements ........................................................... 139
ERQ100~140A7V1B
Inverter condensing unit
4PW51321-1
Inverter condensing unit
Page
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
DAIKIN EQUIPMENT IS DESIGNED FOR COMFORT
APPLICATIONS. FOR USE IN OTHER APPLICATIONS,
PLEASE CONTACT YOUR LOCAL DAIKIN DEALER.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DEALER FOR ADVICE AND
INFORMATION.
THIS AIR CONDITIONER COMES UNDER THE TERM
"APPLIANCES NOT ACCESSIBLE TO THE GENERAL
PUBLIC".
The English text is the original instruction. Other languages are
translations of the original instructions.
1. S
AFETY CONSIDERATIONS
The precautions listed here are divided into the following two types.
Both cover very important topics, so be sure to follow them carefully.
WARNING
If the warning is not observed, it may cause serious casualties.
CAUTION
If the caution is not observed, it may cause injury or damage to the
equipment.
Warning
■
Ask your dealer or qualified personnel to carry out installation
work. Do not install the machine by yourself.
Improper installation may result in water leakage, electric shocks
or fire.
■
Perform installation work in accordance with this installation
manual.
Improper installation may lead to water leakage, electric shocks
or fire.
■ When a unit is installed in a small room, it is necessary to take
measures so that the leaked refrigerant amount does not
exceed the limit even if it leaks. As for the measures to prevent
the leak from not exceeding the limit, please consult with your
distributor.
If the leaked amount exceeds the limit, it may cause an oxygen
deficiency accident.
■ Be sure to use only the specified accessories and parts for
installation work.
Failure to use the specified parts may result in water leakage,
electric shocks, fire, or the unit falling.
■
Install the air conditioner on a foundation that can withstand its
weight.
Insufficient strength may result in the fall of equipment and
causing injury.
■
Carry out the specified installation work in consideration of
strong winds, typhoons, or earthquakes.
Improper installation work may result in accidents due to fall of
equipment.
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