Daikin VRV IV User Manual

18 | Piping installation
Installer and user reference guide
87
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 2020.10
c
d
a
b
a Service port and service port cover
b Stop valve
c Field piping connection
d Stop valve cover
a b
cde
a Service port
b Stop valve cover
c Hexagon hole
d Shaft
e Valve seat
▪ Do NOT apply excessive force to the stop valve. Doing so may break the valve
body.
To open the stop valve
1 Remove the stop valve cover.
2 Insert a hexagon wrench into the stop valve and turn the stop valve
counterclockwise.
3 When the stop valve cannot be turned any further, stop turning.
4 Install the stop valve cover.
Result: The valve is now open.
To fully open the Ø19.1~Ø25.4mm stop valve, turn the hexagonal wrench until a
torque between 27 and 33N•m is achieved.
Inadequate torque may cause leakage of refrigerant and breakage of the stop valve
cap.
NOTICE
Pay attention that mentioned torque range is applicable for opening
Ø19.1~Ø25.4mm stop valves only.

Daikin VRV IV Specifications

General

Type	Variable Refrigerant Volume (VRV)
Series	VRV IV
Refrigerant	R410A
Energy Efficiency	High
Operating Temperature Range (Cooling)	-5°C to 46°C
Operating Temperature Range (Heating)	-20°C to 15.5°C
Installation	Professional installation required
Control	Centralized control system
Indoor Unit Options	Various types including ceiling cassette, wall-mounted, ducted, and floor-standing
Power Supply	380-415V, 3-phase, 50Hz