7
PTEC-M-1A
General
Information
Unit Features
This unit has many features which
are different than those found on
conventional PTAC units. The
servicer must be familiar with these
features in order to properly service
the unit.
•
Automatic 3-minute compressor
lockout
- After the compressor
cycles off, it will not restart for three
minutes.
•
Automatic 2nd stage electric heat
-
If the room temperature falls to
4.0°F below the set point
temperature, the reverse cycle heat
is shut off and the electric heat is
turned on.
•
Automatic freeze protection
-
Whenever power is supplied to the
unit, automatic freeze protection is
active. If the unit senses room
temperature below 40°F, the fan
motor and electric heat are turned
on.
•
Random restart delay
-To help
eliminate power surges after a
power outage, the unit is equipped
with a two to four minute random
restart delay feature. Whenever the
unit is plugged in with the master
switch turned on and the mode
switch set in the cool or heat mode,
a random restart will occur. A
random restart condition can be
avoided by setting the mode
switch in the fan only or off
position before applying power to
the unit.
•
Fuse Holder
- On all 265 volt units,
fuse holders are factory installed.
Check for blown fuse if unit does
not operate. The fuse holder is
located behind the front cabinet
under the control board.
Replacement fuses may be
purchased from your local TPC.
•
Front Mounting Holes
-Two
mounting holes are provided to
give the owner the option of
securing the front to the chassis.
The mounting holes are located
behind the intake grille. The owner
must supply two 1/2 inch long #8
sheet metal screws per unit . The
two screws must be removed
before the front can be removed.
Summary of Contents for PTEC-070
Page 22: ...PTEC M 1A 22 Refrigeration System PTEC Refrigeration System...
Page 54: ...PTEC M 1A 54 Schematic Diagrams PTEC and PTHC Condensate Pump One Stage Heat...
Page 55: ...55 PTEC M 1A Schematic Diagrams PTEC and PTHC Condensate Pump Two Stage Heat...
Page 56: ...PTEC M 1A 56 Schematic Diagrams PTEC and PTHC Power Vent One Stage Heat...
Page 57: ...57 PTEC M 1A Schematic Diagrams PTEC and PTHC Power Vent Two Stage Heat...
Page 58: ...PTEC M 1A 58 PTEC and PTHC Power Door One Stage Heat Schematic Diagrams...
Page 59: ...59 PTEC M 1A Schematic Diagrams PTEC and PTHC Power Door Two Stage Heat...
Page 60: ...PTEC M 1A 60 Schematic Diagrams PTEC and PTHC Condensate Pump with Power Vent One Stage Heat...
Page 61: ...61 PTEC M 1A Schematic Diagrams PTEC and PTHC Condensate Pump with Power Vent Two Stage Heat...
Page 62: ...PTEC M 1A 62 Schematic Diagrams Hydronic...
Page 63: ......
