Carrier 48EH, Инструкции по установке, эксплуатации и обслуживанию

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Packaged rooftop units
with integrated gas burner
6
5. T
RANSPORT
The unit must be handled with care to avoid transport damage. Thus
we recommend:
- For transport in a container, one must be selected that has an easy
load and unload to the installation location.
- Do not dispose of the pallet or the packaging materials until the unit
is in its fi nal location.
Note: the skis for closed container transport can be removed by
unscrewing them from the unit struts.
- The unit can be handled with a forklift truck, taking all necessary
precautions to avoid sliding of the unit on the truck's fork.
- The unit must be lifted and fi xed with care and without inclination
(maximum inclination 15º), since it could harm its operation. Please
refer to the gravity centre coordinates of each model in accordance
with the assembly.
- For the transport and lifting to the roof using a crane cloth slings
with rings will be used, with the
appropriate resistance, separated
by a strut to avoid damaging the
casing. These slings are attached
to the grips on the strut.
Detail lifting grip
Ski for the container
Refrigerant leaks:
- Toxicity: According to ASHRAE 34, R-410A belongs to the A1/A1group
with high safety both in the mix and also in the case of a leak.
- Although it is not toxic, in case of a leak to atmospheric pressure the
liquid phase evaporates. The resulting vapours are heavier than air
and can displace the technician local air. In case of an accidental
discharge in a closed enclosure, fans must be used to eliminate said
vapours.
- Although the R-410A is not fl ammable, when in contact with a fl ame
or hot spot it can decompose thus producing fl uorhydric acid HF and
fl uophosgene COF
2
which are highly toxic and corrosive.
- To detect leaks, an electronic leak detector, an ultraviolet lamp or
soapy water must be used . Flame detectors do not help.
Note: Repair immediately any refrigerant leak, using
recovery unit specifi c for R-410A that avoids a possible
mixture of refrigerants and/or oils.
Refrigerant safety
A periodical check must be performed for refrigerant gas leaks as per
Regulation (CE) Nº842/2006 over certain greenhouse effect fl uoride
gases.
R 410A
These units work with refrigerant gas
Components R-32 R-125
Chemical formula CH2F2 CHF2CF3
Weight ratio 50% 50%
Unitary global warming potential (GWP) 675 3.500
Global warming potential (GWP) 2.088
Natural or propane gas leaks in the burner:
- Do not operate electric switches or other objects which could cause
sparks.
- Close the gas supply valve.
- Improve the ventilation if the burner is located in a closed area.
- Ensure that there is no one in the vicinity of the leak and request the
intervention of site staff.
Burner safety
The gas burner has a built-in maximum safety system which cuts off
the supply of gas to the burner should the fl ame go out. Ensure that
no objects impair the supply of air to the burner.
Note: If the generator is not going to be used over a
prolonged period the gas supply valve must be closed.
Grip
Attention: Check that the grips are perfectly screwed in before
attaching the slings.
- After the placing of the unit, it is recommended to remove the grips
as they can be a hindrance for maintenance. Put them back in case
of unit transport.