6
Introduction
Model 161
Running Specifications
Pressures/Temperatures
The following are the Taylor recommended settings
for various components within these models. The
Model 161 uses R404A.
Expansion Valve - Low Side (Suction)
Soft Serve
Air Cooled - 21 psi. (145 kPa) for a normal product
of 16_ to 18_F(-8.8_to -7.7_ C). Set each side
separately at 16 psi (110 kPa).
Expansion Valve Adjustment
Place your gauge on the access valve on the suction
line (located at the compressor).
Adjust the pressure higher or lower by turning the
adjustment screw. Clockwise turns will raise the
pressure and counterclockwise turns will lower the
pressure.
Make expansion valve adjustments with mix in the
cylinder and the freezer in the AUTO mode. Be sure
to allow adequate time for the pressure to stabilize.
Repeat these instructions for the other side of the
unit. The expansion valve on each side of the unit
must be set separately.
High Side (Discharge)
High side pressure varies for air cooled units,
depending on the ambient temperature.
Ambient Temperature Normal Operating Head
Pressures
F. C. PSI
70_ 21.1_ 240 - 270
(1,655 - 1,862 kPa)
80_ 26.7_ 270 - 300
(1,862 - 2,069 kPa)
90_ 32.2_ 300 - 340
(2,069 - 2,344 kPa)
100_ 37.8_ 340 - 380
(2,344 - 2,620 kPa)
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