Gree GMV MTAC VRF Series, Service Manual

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Gree GMV MTAC VRF for North America
2
PRODUCT
1 Product List
Model
Product
Code
Cooling
Capacity
Heating
Capacity Power Supply Refrigerant
Appearance
kW(Btu/h) kW(Btu/h)
GMV-12WP/A-T(U) CN850W0930
3.52
(12000)
3.52
(12000)
208V/230V~
60Hz
R410A
2 Product Features
2.1 General Introduction
GMV MTAC is a kind of concealed VRF unit, which adopts front side air discharge and air
return. It’s mainly developed for North American market, which is applicable for apartments, offices,
hotels and other areas. The unit adopts deep subcooling technology for ensuring the quiet cooling
operation. Moreover, the unique drainage control technology has solved the problem of water
drainage of outdoor unit under low-temperature environment. Include GMV-12WP/A-T(U).
2.1.1 Features
(1) Super high energy efficiency.
The system adopts all DC motor, which greatly improves efficiency. The energy efficiency for
Gree all DC unit is increased greatly. SEER of GMV-12WP/A-T(U) is up to 15.5; HSPF of
GMV-12WP/A-T(U) is up to 9.5.
(2) New generation CAN bus communication.
Due to the latest communication method—CAN Bus Communication, system’s
anti-interference capability is stronger and the control on indoor units is more accurate, with higher
reliability. Specialized shield wire is no more needed and ordinary communication wire can be
applied in the construction, which has increased the installation flexibility.
(3) Long connection pipe.
GMV-12WP/A-T(U):
The maximum length of connection pipe is 30m(98-3/8ft) (in total) and the farthest connection
pipe between indoor and outdoor units can be 30(98-3/8ft) m’s long, which has extended the
installation condition and reduced the limit of installation distance.
(4) Wide operation range.
Units can operate reliably in a wide temperature range (cooling: -5~48°C(23~118.4°F),
heating: -20~27°C(-4~80.6°F)).
(5) Fine sound quality.
Through a series of optimized measures, system has reduced the throttle noise and oil return
noise of indoor units, gas bypass noise, etc. so that units are more comfortable regarding sound
quality.