Taylor C723, Service Manual, Page: 10 / 88

6
Introduction Model C723
120629
Running Specifications
Pressures/Temperatures
The following are the Taylor recommended settings
for various components within this model. The C723
uses R404A.
Expansion Valve (AXV)
Air Cooled = 16 - 17 psi (110 kPa)
Water Cooled = 16 - 17 psi (110 kPa)
for a normal product of 16° to 18°F (‐8.8° to ‐7.7°C).
Expansion Valve Adjustment (AXV)
Place your gauge on the access valve on the suction
line (located at the compressor).
Figure 3
Adjust the pressure higher or lower by turning the
adjustment screw. Clockwise turns raise the
pressure and counterclockwise turns lower the
pressure.
Make expansion valve adjustments with mix in the
cylinder and only ONE SIDE of the freezer in the
AUTO mode. Be sure to allow adequate time for the
pressure to stabilize.
Note: With both sides in AUTO, it is normal for
pressures to be higher than the tag setting of 16-17
psi.
Low Side (Suction)
Suction pressure equals expansion valve setting.
High Side (Discharge)
High side pressure varies for air cooled units,
depending on the ambient temperature. The
pressures in the following table are based on both
sides of the unit running in the Auto mode.
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)
Water Valve
On a water cooled unit, the water valve should be
set to maintain a compressor head pressure of 255
PSI (1,758 kPa).
Water Valve Adjustment
Place your gauge on the high side access port of the
compressor. Turning the adjustment stem on the
water valve clockwise will lower the pressure.
Note: Make this adjustment with mix in the freezing
cylinder and the freezer in the AUTO mode. Be sure
to allow adequate time for the pressure to stabilize.