Preparations For Installation; Before Installation; Standard Fittings - Gree GMV-N140U/A-T Manuel D'installation Et D'utilisation

3 Preparations for Installation

3.1 Before Installation

Notes: Product graphics are only for reference. Please refer to actual products.
Unspecified measure unit is mm.
① This equipment is designed for R410A system, and the designed working pressure is 4.2
MPa or 42 bar.
② Precautions for R410A:
a).The refrigerant requires strict cautions for keeping the system clean, dry and tight.
—Clean and dry ： Foreign materials (including mineral oils or moisture) should be
prevented from getting mixed into the system.
—Tight：Read this manual carefully and follow these procedures correctly.
b).Since R410A is a mixed refrigerant, the required additional refrigerant must be charged
in its liquid state (If the refrigerant is in state of gas, its composition changes and the
system will not work properly).
c).The connected air handling units must have heat exchangers designed exclusively for
R410A．
③ Never use this appliance under inflammable and explosive gas.
④ For the following items, take special care during construction and check after installation
is finished:
Tick √ when checked
□ Are the thermistors fixed firmly?
Thermistor may come loose.
□ Is the capacity code setted correctly?
The performance of system may not achieve it's requirement.
□ Is the control box fixed firmly?
The unit may drop, vibrate or make noise.
□ Do electrical connections comply with specifications?
The unit may malfunction or components may burn out.
□ Are wiring and piping correct?
The unit may malfunction or components may burn out.
□ Is the unit safely grounded?
Dangerous at electric leakage.

3.2 Standard Fittings

Please use the supplied standard fittings listed below as instructed.
No.
1
2
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT
Name
Magnetic ring
Swell screw
4
Appearance Quantity
1-2
4