Full Opening Of The Valve; Heat Insulation For Pipe; Finishing After Connecting Pipes; Pipe Holding Bracket - Toshiba Carrier MCY-MAP0367HS-UL Installation Manual

Charging of refrigerant
• Keep the outdoor unit's valve closed, be sure to charge the liquid refrigerant into the service port at the liquid side.
• If the specified amount of refrigerant cannot be charged, fully open the outdoor unit's valves at the liquid and gas
sides, operate the air conditioner in the COOL mode, and then charge the refrigerant into the service port at the gas
side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge the liquid refrigerant.
• The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.
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 Full opening of the valve
Open the valves of the outdoor unit fully.
Liquid side
Packed valve
Using a 4 mm-hexagonal wrench,
fully open the valve rods.
 Heat insulation for pipe
• Apply the pipe's heat insulation separately at the liquid and gas sides.
• Be sure to use a thermal insulator resistant up to 248 °F (120 °C) or higher for pipes at the gas side.
 Finishing after connecting pipes
• After the piping connection work has been finished, cover the opening of the piping / wiring panel with the piping
cover, or fill silicon or putty in the space between the pipes.
• In case of drawing-out the pipes downward or sideward, also close the openings of the base plate and the side
plate.
• Under the opened condition, a problem may be caused due to the entering of water or dust.
When using the piping cover
Drawing-out
downward

Pipe holding bracket

Attach the pipe holding brackets following the table below.
Diameter of pipe in (mm)
Ø3/4" (Ø19.05) or less
Gas side
Valve unit
Using a minus
screwdriver, turn it
counterclockwise
by 90° until it hits
the stopper. (Full
Charge
Closed
open)
port
completely
Flare nut
When not using the piping cover
Drawing-out
rearward
Drawing-out
Drawing-out
sideward
downward
Interval
78.7" (2 m)
Installation Manual
Grooves
for
Opened
driver
fully
Drawing-out
rearward
Drawing-out
sideward
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