Taylor Tim Hortons 390 Original Operating Instructions page 7

Water Connections
(Water Cooled Units, Only)
An adequate cold water supply must be provided
with a hand shut-off valve. On the underside of the
base pan or on the right side, two 3/8" I.P.S. water
connections for inlet and outlet are provided for easy
hook-up. ½" inside diameter water lines should be
connected to the machine.
Flexible hose sets are recommended, if local codes
permit. In Europe, hose sets for connection of
appliances to the water mains must comply with the
international IEC 61770 standard.
The automatic water valve setting of the unit (high
side) is to be set at 250 to 260 PSIG (17.2 to 17.9
Bar). The recommended low side setting is 38 to 39
PSIG (2.6 to 2.7 Bar). Please consult the automatic
water valve tag connected to the unit to verify.
Depending on local water conditions, it may be
advisable to install a water strainer to prevent
foreign substances from clogging the automatic
water valve. There will be only one water "in" and
one water "out" connection.
DO NOT install a hand shut-off valve on the water
"out" line! Water should always flow in this order:
first through the automatic water valve; second,
through the condenser; and third, through the outlet
fitting to an open trap drain.
A back siphon device must be installed to prevent
back siphonage of non-potable water into the water
system.
Model 390 Tim Hortons
Refrigerant
In consideration of our environment, Taylor
uses only earth friendly HFC refrigerants. The HFC
refrigerant used in this unit is R404A. This
refrigerant is generally considered non-toxic and
non-flammable, with an Ozone Depleting Potential
(ODP) of zero (0).
However, any gas under pressure is potentially
hazardous and must be handled with caution.
NEVER fill any refrigerant cylinder completely with
liquid. Filling the cylinder to approximately 80% will
allow for normal expansion.
Use only R404A refrigerant that conforms
to the AHRI standard 700 specification. The use of
any other refrigerant may expose users and
operators to unexpected safety hazards.
Refrigerant liquid sprayed onto the skin may
cause serious damage to tissue. Keep eyes and skin
protected. If refrigerant burns should occur, flush
immediately with cold water. If burns are severe,
apply ice packs and contact a physician
immediately.
Taylor reminds technicians to be cautious of
government laws regarding refrigerant recovery,
recycling, and reclaiming systems. If you have any
questions regarding these laws, please contact the
factory Service Department.
WARNING: R404A refrigerant used in
conjunction with polyolester oils is extremely
moisture absorbent. When opening a refrigeration
system, the maximum time the system is open must
not exceed 15 minutes. Cap all open tubing to
prevent humid air or water from being absorbed by
the oil.
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