Safety Equipment; Hvac System Components - Polaris RANGER XP 900 2018-2019 Service Manual

SAFETY EQUIPMENT

In servicing A/C and heater systems you will be exposed
to high pressures, temperatures and several chemical
hazards. Moving belts and pulleys are normal shop
hazards.
In addition to exercising caution in your work, WEAR
SAFETY GLASSES OR A FACE SHIELD when you are
using R-134a or a leak detector, adjusting service valves
or the manifold gage set connectors. Safety glasses or a
transparent face shield are practical safety items and one
or the other is absolutely required.
WARNING
In the event of a leak, wear safety goggles. Escaping
refrigerant can cause severe injuries to eyes. In contact
with a flame, R-134a refrigerant gives off a toxic gas.
R-134a inside a canister or in an A/C system is a liquid
under pressure. When it escapes or releases into the air,
ITS TEMPERATURE DROPS TO -5.8° C (21.6° F)
"INSTANTLY". If it spills on your skin or in your eyes you
should flood the area with cool water and SEEK
MEDICAL ATTENTION FAST! It is a good idea to wear
gloves to prevent frost bite if you should get refrigerant
on your hands.
WARNING
HFC R-134a refrigerant can be dangerous if not
properly handled. Liquid R-134a may cause blindness if
it contacts the eyes and may cause serious frostbite if it
contacts the skin.
Gaseous R-134a becomes lethal (phosgene gas) when
it contacts open flame or very hot substances.
NEVER smoke when there is the possibility of even
small amounts of R-134a in the air.
Any servicing work that involves release or addition of
R-134a to the system must be done by a competent
refrigeration dealer who has the proper equipment,
knowledge, and experience to service refrigeration
equipment.
9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
© Copyright Polaris Industries Inc.
ENGINE / COOLING / HVAC SYSTEM

HVAC SYSTEM COMPONENTS

Compressor: The compressor
circulates the refrigerant throughout the system. It raises
the pressure of the refrigerant for heat transfer through
the condenser and evaporator.
NOTICE
The A/C system (Compressor) is recommended to be
turned on for at least 5 minutes weekly throughout the
year to lubricate the internal components.
Condenser: The condenser
the high pressure, high temperature refrigerant vapor
from the compressor and condenses it into a high
temperature liquid.
Receiver / Drier: The receiver / drier
receives the liquid refrigerant from the condenser and
removes moisture and foreign matter from the system. It
also serves as a storage tank for the extra liquid
refrigerant until it is needed by the evaporator.
Pressure Relief Valve: The pressure relief valve
located on the receiver drier assembly. This small brass
valve is a safety feature that is designed to open and
release the A/C charge if the pressure reaches 535 psi
(3.7 MPa).
q
is the pump that
w
is the unit that receives
e
is the unit that
r
is
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