Daikin altherma ERLQ014CAW1 - Document Definitions; Meaning of Warnings and Symbols; Critical Safety Precautions

Installation manual
1
ERHQ011~016BAV3+W1 + ERLQ011~016CAV3+W1
Outdoor unit for air to water heat pump
4PW57794-1 – 08.2010
CONTENTS Page
1. Definitions.................................................................................. 1
1.1. Meaning of warnings and symbols................................................. 1
1.2. Meaning of used terms .................................................................. 2
2. Safety considerations ................................................................ 2
Warning.......................................................................................... 3
Caution........................................................................................... 3
3. Before installation...................................................................... 4
3.1. Scope of the manual ...................................................................... 4
3.2. Precautions for R410A................................................................... 4
3.3. Installation...................................................................................... 4
3.4. Model identification ........................................................................ 4
3.5. Accessories.................................................................................... 4
3.6. Handling......................................................................................... 5
4. Overview of unit......................................................................... 5
4.1. Opening the unit............................................................................. 5
4.2. Main components........................................................................... 6
4.3. Functional diagram ERHQ_V3+W1 ............................................... 7
4.4. Functional diagram ERLQ_V3+W1................................................ 8
5. Selecting installation site ........................................................... 9
5.1. General .......................................................................................... 9
5.2. Selecting a location in cold climates ............................................ 10
6. Precautions on installation....................................................... 11
6.1. foundation work............................................................................ 11
6.2. Drain work (only for ERHQ) ......................................................... 11
6.3. Installation method for prevention of falling over.......................... 12
7. Installation servicing space ..................................................... 12
8. Refrigerant pipe size and allowable pipe length ...................... 13
8.1. Selection of piping material.......................................................... 13
8.2. Refrigerant pipe size .................................................................... 13
8.3. Allowable pipe length and height difference................................. 13
9. Precautions on refrigerant piping............................................. 14
9.1. Flaring guidelines......................................................................... 14
9.2. Brazing guidelines........................................................................ 14
9.3. Stop valve operation .................................................................... 15
Cautions on handling the stop valve ............................................ 15
Opening/closing the stop valve .................................................... 15
Cautions on handling the stem cap.............................................. 15
Cautions on handling the service port ......................................... 15
9.4. Tightening torques ....................................................................... 15
10. Refrigerant piping .................................................................... 15
10.1. Preventing foreign objects from entering...................................... 16
10.2. Precautions when connecting field piping and
regarding insulation...................................................................... 16
10.3. Cautions for necessity of a trap.................................................... 16
11. Leak test and vacuum drying................................................... 17
11.1. General guidelines ....................................................................... 17
11.2. Setup............................................................................................ 17
11.3. Leak test ...................................................................................... 17
11.4. Vacuum drying ............................................................................. 17
12. Charging refrigerant................................................................. 17
12.1. Important information regarding the refrigerant used................... 17
12.2. Precautions and general guidelines............................................. 18
12.3. Calculating the additional refrigerant charge for ERHQ models .. 18
12.4. Calculating the additional refrigerant charge for ERLQ models... 18
12.5. Complete recharging.................................................................... 19
For ERHQ only............................................................................. 19
For ERLQ only ............................................................................. 19
13. Pump down operation.............................................................. 19
14. Electrical wiring work............................................................... 19
14.1. Precautions on electrical wiring work........................................... 19
14.2. Connecting power supply and interunit wiring ............................. 20
14.3. Precautions on wiring of power supply and inter-unit wiring ........ 20
14.4. Electrical characteristics .............................................................. 21
ERHQ models .............................................................................. 21
ERLQ models............................................................................... 21
15. Test operation ..........................................................................21
15.1. Pre-run checks............................................................................. 21
15.2. Test run ........................................................................................ 21
15.3. Failure diagnosis at the moment of first installation ..................... 22
16. Maintenance and servicing ......................................................22
16.1. Service precautions ..................................................................... 22
16.2. Service mode operation ............................................................... 22
17. Disposal requirements .............................................................22
18. Unit specifications....................................................................23
18.1. Technical specifications ............................................................... 23
18.2. Electrical specifications................................................................ 23
19. Wiring diagram.........................................................................24
Thank you for purchasing this product.
The original instructions are written in English. All other languages
are translations of the original instructions.
1. DEFINITIONS
1.1. Meaning of warnings and symbols
Warnings in this manual are classified according to their severity and
probability of occurrence.
Some types of danger are represented by special symbols:
ERHQ011BAV3+W1 ERLQ011CAV3+W1
ERHQ014BAV3+W1 ERLQ014CAV3+W1
ERHQ016BAV3+W1 ERLQ016CAV3+W1
Outdoor unit for air to water heat pump
Installation manual
CAREFULLY READ THESE INSTRUCTIONS BEFORE
INSTALLATION. THEY WILL TELL YOU HOW TO INSTALL
AND HOW TO CONFIGURE THE UNIT PROPERLY.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE
REFERENCE.
DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also
be used to alert against unsafe practices.
NOTICE
Indicates situations that may result in equipment or
property-damage accidents only.
This symbol identifies useful tips or additional information.
Electric current.
Danger of burning and scalding.