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Sky пишет:
Что мне все случаи рисовать?
Ваш пример тем более нельзя объяснить ростом льда снизу(ну да,в этом случае он растет сверху вниз).
И всеже,как лед заминает медную трубку(красный цвет)не трогая при этом алюминевую(синий цвет)
С уважением,Sky. |
Будете спорить с инженерами MHI?
Вуаля. Сервисбуллетень как раз по этой проблеме:
No. MQC-TSI-1101
Date: 21st Feb 2011
This is to inform of the trouble occurred in the market and its measure. The anomaly mentioned in this
document could occur if a product is installed in improper manner in the cold and snowy region.
Please refer to this document carefully and give your instruction to your customer to mind proper
installation when installing following objective products.
1.Objective products
RAC, PAC and KX outdoor units of horizontal air blow models
2.Symptom
A copper pipe of outdoor unit heat exchanger could be deformed in heating operation.
When this trouble occurs, following error code or symptom may appear.
(1)E36
(2)E49
(3)Insufficient heating and cooling
(4)Compressor failure
(5)Gas leakage
3.Cause
In case that the product is installed in following places without suitable measure,
(1)The place where heavy snow falls.
(2)The place where the ambient temperature is 0 degree or less for all day or most of the time.
(3)The place where the suitable drainage cannot be secured.
(4)The place where unsuitable defrost operation cannot be done due to short-circuit of air-flow or
strong wind etc.
4.Measure
(1)Change of defrosting condition
The dip switch on outdoor control РСB needs to be changed. For the details, refer to
the corresponding technical manual.
(2)Attachment of heater on a base plate
Equip a base plate heater locally procured on the product.
In case that the product has a collective drainage system, the drainage paths should have
suitable treatment against freezing but be sure not to melt the material of drainage path
with heat.
(3)Attachment of snow guard and the mounting bases with enough height by considering maximum
snow accumulation
A snow guard and mounting base should be procured locally.
(4)Attachment of wind guard
A wind guard should be procured locally.
(5)Securing a drainage path
To prevent from the trouble occurring in snowy area, refer to attached technical information.
ENGINEERING AND SERVICE INFORMATION
Subject: Prevention from damage on copper pipe of outdoor heat exchanger
AIR-CONDITIONING & REFRIGERATION SYSTEMS
HEADQUARTERS
QUALITY ASSURANCE DEPARTMENT
3-1, ASAHI, NISHIBIWAJIMA-CHO
KIYOSU, AICHI-PREF. 452-8561 JAPAN
Ни слова про вакуум.
Форум 
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