10
18-AC98D1-7D-EN
STEP 2
- Observe the micron gauge. Evacuation
is complete if the micron gauge does not rise
above 500 microns in one (1) minute.
Once evacuation is complete blank off the
vacuum pump and micron gauge, and close the
valves on the manifold gauge set.
1 MIN.
Section 10. Service Valves
10.1 Open the Gas Service Valve
CAP
1/4 TURN ONLY
COUNTERCLOCKWISE
FOR FULL OPEN
POSITION
VALVE STEM
GAS LINE CONNECTION
UNIT SIDE
OF VALVE
PRESSURE TAP PORT
Important:
Leak check and evacuation must be
completed before opening the service valves.
NOTE:
Do not vent refrigerant gases into the
atmosphere
STEP 1
- Remove valve stem cap.
STEP 2
- Using an adjustable wrench, turn valve
stem 1/4 turn counterclockwise to the fully open
position.
STEP 3
- Replace the valve stem cap to prevent
leaks. Tighten finger tight plus an additional 1/6
turn.
10.1 Open the Liquid Service Valve
Important:
Leak check and evacuation must be
completed before opening the service valves.
STEP 1
- Remove service valve cap.
STEP 2
- Fully insert 3/16” hex wrench into the
stem and back out counterclockwise until valve
stem just touches the rolled edge (approximately
five (5) turns.)
STEP 3
- Replace the valve cap to prevent leaks.
Tighten finger tight plus an additional 1/6 turn.
Cap
Rolled Edge to
Captivate Stem
Hex Headed
Valve System
Service Port
3/16” Hex Wrench
Unit Side
of Service
Valve
Extreme caution should be exercised when
opening the Liquid Line Service Valve. Turn
counterclockwise until the valve stem just
touches the rolled edge. No torque is required.
Failure to follow this warning will result in abrupt
release of system charge and may result in
personal injury and /or property damage.
WARNING
!
Section 11. Electrical - Low Voltage
11.1 Low Voltage Maximum Wire Length
Table 11.1 defines the maximum total length of
low voltage wiring from the outdoor unit, to the
indoor unit, and to the thermostat.
Table 11.1
24 VOLTS
WIRE SIZE
MAX. WIRE LENGTH
18 AWG
150 Ft.
16 AWG
225 Ft.
14 AWG
300 Ft.
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