
Control Functions
SiE71-202
26
Control Functions
1.2.6
External Damper Operation (FIELD SUPPLY)
Explanation of
Functions
Intake of outdoor air can be prevented when HRV is switched OFF if this damper is incorporated in the
system.
1. The total heat exchanger’s main unit print board supplies power for external damper.
Essential Wiring
1. Connect one end of the harness to the X15A on the print board and the other end to the harness
leading to the damper via a connector such as a closed connector.
With regard to closed connector, select one that suits wire diameter.
Essential Setting
Changes
The X15A output is at the default setting and is not in operation, so the output setting should be changed at
the LCD of the remote controller.
Setting changes should be made in the following way.
Mode No.: 18 (group tie up) or 28 (per each unit)
Setting switch No.: 3
Setting position No.: 03
Air discharge
grille
Print circuit
board
External
damper
Inspection
hole
EA
(Exhaust air to outdoors)
OA
(Fresh air from outdoors)
Switch box
Supply voltage
Connected load capacity
220V
230V
240V
• Power supply turn ON when total heat exchanger
starts operating.
Power supply turn OFF when total heat exchanger is
switched OFF.
Required setting changes for switchover to X15A out-
put (see below for details)
0.5A or less
Heat insulator
External damper
(field supply)
Total heat exchanger main unit
Air suction grille
Round shape hood
Electric equip -
ment cover
Electric component
mounting base
Closed connector
(field supply)
To external damper
Rubber bush
Securing Screws
Printed circuit board
Harness (0.5mm
2
: supplied)
Switch box interior
Opens
This way
Содержание VAM 150FAVE
Страница 5: ...SiE71 202 iv Table of Contents ...
Страница 10: ...SiE71 202 General Constructions 1 Part 1 General Constructions 1 General Constructions 2 1 1 Explanation 2 ...
Страница 13: ...General Constructions SiE71 202 4 General Constructions ...
Страница 14: ...SiE71 202 Product Specification 5 Part 2 Product Specification 1 Product Specification 6 1 1 Specification 6 ...
Страница 37: ...Control Functions SiE71 202 28 Control Functions ...
Страница 41: ...Circuit Operations SiE71 202 32 Circuit Operations ...
Страница 73: ...Supplementary Explanation SiE71 202 64 Supplementary Explanation ...
Страница 74: ...SiE71 202 Appendix 65 Part 9 Appendix 1 Appendix 66 1 1 Wiring Diagram 66 ...
Страница 77: ...Appendix SiE71 202 68 Appendix ...
Страница 81: ...SiE71 202 iv Index ...