11
Models C708/C709/C716/C717
Introduction
Running Specifications
Pressures/Temperatures
The following are the Taylor Company
recommended settings for various components
within these models. The freezers in this manual use
refrigerant R404A.
Note:
These settings apply to both sides of the
C716 and C717.
EPR Valve
= 60 psi (414 kPa)
DBV Valve
= 10 - 11 psi (69 - 76 kPa)
OPR Valve
= 40 psi (276 kPa)
Expansion Valve (AXV)
Air Cooled - 21 psi (145 kPa)
Water Cooled - 21 psi (145 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).
Adjust higher or lower by turning the adjustment
screw. Clockwise turns raise the pressure and
counterclockwise lower the pressure.
Note:
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.
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.
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 cylinder
and the freezer in the AUTO mode. Be sure to allow
adequate time for pressure to stabilize.
Summary of Contents for C708
Page 1: ...Models C708 C709 C716 C717 Heat Treatment Soft Serve Freezers Service Manual 059061 S 6 15 05 ...
Page 2: ......
Page 6: ...Table of Contents Models C708 C709 C716 C717 Notes ...
Page 22: ...16 Introduction Models C708 C709 C716 C717 Notes ...
Page 49: ...43 Models C708 C709 C716 C717 Systems Controls and Operations C708 C709 Control Overview ...
Page 50: ...44 Systems Controls and Operations Models C708 C709 C716 C717 C716 C717 Control Overview ...
Page 53: ...47 Models C708 C709 C716 C717 Systems Controls and Operations Refrigeration Schematic ...
Page 70: ...64 Troubleshooting Models C708 C709 C716 C717 Notes ...
Page 73: ...67 Models C708 C709 C716 C717 Parts Notes ...
Page 74: ...68 Parts Models C708 C709 C716 C717 Model C708 Exploded View ...
Page 78: ...72 Parts Models C708 C709 C716 C717 Model C709 Exploded View ...
Page 82: ...76 Parts Models C708 C709 C716 C717 Model C716 Exploded View ...
Page 86: ...80 Parts Models C708 C709 C716 C717 Model C717 Exploded View ...
Page 133: ...C708 C709 057010 27 Rev 6 05 ...
Page 134: ...C708 C709 057010 33 Rev 6 05 ...
Page 135: ...C708 C709 057010 40 Rev 6 05 ...
Page 136: ...C708 C709 057010 58 Rev 6 05 ...
Page 137: ...Model C716 059900 27 Rev 2 06 ...
Page 138: ...Model C716 059900 27 Inset 1 2 06 ...
Page 139: ...Model C716 059900 27 Inset 2 2 06 ...
Page 140: ...Model C716 059900 33 Rev 2 06 ...
Page 141: ...Model C716 059900 40 Rev 2 06 ...
Page 142: ...Model C716 059900 58 Rev 2 06 ...
Page 143: ...Model C717 059901 27 6 05 ...
Page 144: ...Model C717 059901 27 Inset 1 6 05 ...
Page 145: ...Model C717 059901 27 Inset 2 6 05 ...
Page 146: ...Model C717 059901 33 6 05 ...
Page 147: ...Model C717 059901 40 6 05 ...
Page 148: ...Model C717 059901 58 6 05 ...