![background image](http://html1.mh-extra.com/html/carrier/42am-atex/42am-atex_installation-operation-and-maintenance-instructions_2563594028.webp)
8 - FREQUENTLY ASKED QUESTIONS
Questions/Problems
Possible causes
Remedies
I can't obtain the stated flow rate.
The impeller is not turning in the correct
direction.
See "Commissioning" section
The coil is fouled
See "Maintenance & Servicing" section
The heating capacity is insufficient
The impeller is not turning in the correct
direction.
See "Commissioning" section
The flow rate (or the water temperature)
supplied by the 42AM is not sufficient
Refer to the thermal, aeraulic and acoustic
performance selections made by your design
office.
My 42AM unit is making an unusual noise
Dirt has accumulated on the impeller, throwing it
off balance and causing it to make an
unbalanced noise.
See "Maintenance & Servicing" section"
The fan motor assembly is not sufficiently
secured to the casing and the assembly
vibrates.
See "Maintenance & Servicing" section"
The fan motor assembly is consuming more
current than the value indicated on the data
plate
The impeller is not turning in the correct direction
See "Commissioning" section
The impeller does not turn at all
The coil is fouled, the motor goes into
overheated mode and the motor circuit breaker
cuts the electrical supply to it.
See "Commissioning" and "Maintenance &
Servicing" sections
9 - TESTING & WARRANTY
All our units are tested and proven before leaving the factory.
They are guaranteed against all manufacturing defects. CARRIER shall not be held liable for any type of corrosion.
The motors are not covered by the warranty in cases of incorrect electrical connection or inadequate protection.
Under no circumstances must the fitter carry out work on the motor. This will invalidate any future claims on the warranty.
The device complies with the CE marking, allowing free movement throughout the territory of the European Union. This marking is a
guarantee of security and protection of people.
28
Summary of Contents for 42AM ATEX
Page 2: ...2...
Page 15: ...FRANCAIS 15...
Page 16: ...16...
Page 29: ...ENGLISH 29...
Page 30: ...30...
Page 43: ...DEUTCH 43...