Midea VRF V4 Plus I Series User Manual

MCAC-VTSM-2014-04 R410A DC Inverter VRF V4 Plus Individual Series 50Hz
Installation 81
15.4 Caution on refrigerant leakage
 This air conditioner adopts R410A as refrigerant, which is safe and noncombustible.
 The room for air conditioner should be big enough that refrigerant leakage cannot reach the critical
thickness. Besides this, you can take some action on time.
 R410A critical thickness: 0.3 [kg/m
3
], (Critical thickness: the max thickness of Freon without any harm to
person)
 Calculate the critical thickness through following steps, and take necessary actions.
1. Calculate the refrigerant charge (A [kg])
2. Total refrigerant charge = delivered refrigerant charge (nameplate) + supplemental refrigerant charge
3. Calculate the indoor volume (B [m
3
]) (as the minimum volume)
4. Calculate the refrigerant thickness.
A kg
B m3
≤critical thickness 0.3kg/m3
 Countermeasure to overhigh refrigerant thickness
1. Install mechanical ventilator to reduce the refrigerant thickness
under critical level. (Ventilate regularly)
2. Install leakage detector alarming device related to mechanical
ventilator if you cannot regularly ventilate.
Model(indoor unit)
Room Name
Eg: Indoor unit (A) of the
first system on second floor
is recorded as:-2F-1A

Midea VRF V4 Plus I Series Specifications

General

Brand	Midea
Model	VRF V4 Plus I Series
Category	Air Conditioner
Language	English