Lennox INNOV DM R Series User Manual

INNOV@ ECFAN DMR -AGU-0912-E • 10 •
The recommended sizes for the power cables and emergency line are shown in the table below:
Tab. 4 INNOV@DM-R “CW”
MODEL Power supply Cable type
(*)
DMCDR0080
400V / 3Ph + N / 50Hz
4 x 2,5 mm
2
+ T 2,5 mm
2
DMCDR0110
DMCDR0140
4 x 4,0 mm
2
+ T 4,0 mm
2
DMCDR0160
DMCDR0200
DMCDR0230
Tab. 5 INNOV@DM-R “DX”
MODEL Power supply Cable type
(*)
DMADR0060
400V / 3Ph + N / 50Hz
4 x 2,5 mm
2
+ T 2,5 mm
2
DMADR0080
DMADR0100
4 x 4,0 mm
2
+ T 4,0 mm
2
DMADR0110
DMADR0130
4 x 6,0 mm
2
+ T 6,0 mm
2
DMADR0160
DMADR0190
DMADR0205
(*) Sections dimensioned for using cables made with PVC, line max. lenght = 100m
4 Evacuation and Charging Operations for DX-Type Units
This type of work must be carried out by qualified personnel only trained to do their job in accordance
with current laws and regulations.
4.1 Introduction
The contemporaneous presence of liquid and vapour requires for both to be in a state of saturation (Gibb’s law), as
shown in Fig. 6. In thermal equilibrated conditions, the pressure in the tank corresponds to the ambient temperature.
Withdrawal of refrigerant from the tank has following effects:
D .. withdrawal of refrigerant charge: .... ..... ..... pressure drop inside the tank;
D .. pressure drop inside the tank: .. ..... ..... ..... T drop & change of status;
D .. T drop & change of status: .. ..... ..... ..... ..... evaporation of part of the liquid, causing a cooling down of the liquid;
D cooling of liquid: thermal exchange with ambient air, further evaporation of remaining
liquid; the original pressure in the tank will be restored after a certain period of time.
Fig. 6 Gibb’s law diagram
P
Entha
lpy h
T
tank/ambie
nt
Saturated gas
Saturate
d Liquid

Lennox INNOV DM R Series Specifications

General

Brand	Lennox
Model	INNOV DM R Series
Category	Heat Pump
Language	English