Failure Definition - Carrier XCT 7 40VH015A-7G-QEE Manual De Operación E Instalación

Ventilación para recuperar calor
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Installing Heat Reclaim Ventilation

Failure Definition

1. Failures and Remedies
Check against following symptoms in case the unit does not run normal.
Symptoms
Total Breakdown
Low Air Displacement and High
Noise Level.
High Air Displacement and High
Noise Level.
2. In case that any of the following failures occur, please take measures below in the first place and then
contact concerned distributors.
When unusual conditions (e.g., burnt smell) happen to heat exchanger, please immediately shut off power and
contact concerned distributors.
Under such conditions, continued operation may lead to failure, electric shock and fire accident.
When safety devices, such as fuse, breaker or creepage breaker, frequently jump off, or switch cannot work as
usual, do not turn on power.
Remedy: Keep Power Off
When control buttons fail, turn off main power switch.
3. Heat Reclaim Ventilation Failure Codes:
(indicated only on wired controller matched with heat reclaim ventilation)
When failure codes below is indicated on wired controller, please immediately stop operation, shut off manual
power switch and contact concerned distributors or contact after service staff.
Name
Indoor Ambient Temperature Sensor Failure
Outdoor Ambient Temperature Sensor Failure
Limit Switch 1 Failure
Wired Controller and PCB Communication Failure
CAUTION: Service job shall be undertaken by specialists. In case of other failures, please stop operation and
inform concerned distributors.
Debugging Prior to Operation:
Recheck after completing all installation work. While rechecking, refer to all installing notices in this manual. In case of
any inconsistency, please make immediate correction. After normal operation is confirmed, the manual shall be kept
carefully by users.
Before operating the unit, users shall carefully read the manual; when the unit is to be resold to other new users,
please transfer invoice and manual to new users to facilitate future service.
Causes
Power devices fail?
Fuse burnt out or breaker cut off?
Standby indicator activated?
Filter or heat exchange components
blocked?
Filter or heat exchange components
installed in prescribed positions?
Code
26
Remedies
Restart after service
Replace fuse or reset breaker
The unit is right in the prewarming or
precooling process prior to running status
(refer to Wire Control Button Definition).
Refer to "Maintenance"
Refer to "Maintenance"
Definition
E1
Indoor ambient temperature sensor fails
E2
Outdoor ambient temperature sensor fails
E3
Air door adjustor 1 or relevant parts fail
E8
Communication connections improper or
control wire control, PCB damaged

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