PTM200 - PTM1000 USER GUIDE
Page 13 - Rev D
Sr
Service/Maintenance
reminder
1 year timer has elapsed
See maintenance sect. in manual &
reset by pressing up/down arrows at
the same time
Hd
High dewpoint
1) Excessive thermal load.
2) Compressor stopped
3) Control board defective
1) Reduce inlet and/or ambient tem-
perature and/or inlet flow
2) Check circuit for loose connec-
tion / open
3) Replace
**The refrigerant compressor has exceeded the maximum allowable starts per hour. If the number of
starts/hr. is exceeded, the “CP” warning will flash on the display. The dryer will automatically increase
the dewpoint setting to 50
°
F (10
°
C) from its current setting to reduce the number of starts/hr. below
the maximum.
It is not advisable to tamper with the other adjustments unless you are familiar with refrigeration. The
controls interact with each other and, although the effect of an adjustment may not be immediately
obvious, it will affect the dryer’s performance.
8.1
Refrigerant Charging Procedure
•
Charge liquid refrigerant only. Do not use vapor.
•
The dryer needs to be pulled into a vacuum (500 micron minimum).
•
Charge refrigerant into the high side schraeder port located at the bottom of the
condenser.
•
The full charge may not be accepted. If this occurs, the dryer can be started and the
remainder of the charge should be slowly metered into the refrigeration service valve
(suction side) located under the expansion valve.
8.2
Torque Values
Model
Suction Rotolock
Discharge
Rotolock
All Flare Nuts & Caps
(Except Refrigeration
Receiver on Water-
Cooled units)
Pressure
Switches
Flare Nuts for
Refrigeration
Receiver on
Water-Cooled
units
*Torque
*Torque
*Torque
*Torque
*Torque
PTM0200-A2
N/A
N/A
9 ft/lbs
10 ft/lbs
20 ft/lbs
PTM0250-A2 /W2
PTM0325-A2 /W2
66 ft/lbs
59 ft/lbs
9 ft/lbs
10 ft/lbs
20 ft/lbs
PTM0250-A3 /A4/
A5/W3/W4/W5
PTM0325-A3 /A4/
A5/W3/W4/W5
59 ft/lbs
59 ft/lbs
9 ft/lbs
10 ft/lbs
20 ft/lbs
PTM0400-A3 /A4 /
A5/W3/W4/W5
59 ft/lbs
59 ft/lbs
9 ft/lbs
10 ft/lbs
20 ft/lbs
PTM0500-A3 /A4/
A5/W3/W4/W5
59 ft/lbs
59 ft/lbs
9 ft/lbs
10 ft/lbs
20 ft/lbs
PTM0700-A3 /A4/
A5/W3/W4/W5
PTM0850-A3 /A4/
A5/W3/W4/W5
66 ft/lbs
59 ft/lbs
9 ft/lbs
10 ft/lbs
20 ft/lbs
PTM1000-A3 /A4/
A5/W3/W4/W5
81 ft/lbs
66 ft/lbs
9 ft/lbs
10 ft/lbs
20 ft/lbs
Note:
If using Crows Foot adapters, the torque valves must be re-calculated based on the specific adapter being used.
Summary of Contents for PTM Series
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