Hisense Hi-Therma Serie Manual De Instalación Y Mantenimiento página 15

IMPORTANT NOTICE
• No part of this manual may be reproduced without written
permission.
• If you have any questions, contact with your dealer.
• Check and make sure that the explanations of each part of
this manual correspond to your air to water heat pump model.
• Refer to the models codification to confirm the main
characteristics of your system.
• Signal words (NOTE, DANGER and CAUTION) are used to
identify levels of hazard seriousness. Definitions for
identifying hazard levels are provided in initial pages of this
document.
• The operation modes of these units are controlled by the
master controller.
• This manual should be considered as a permanent part of
the air to water heat pump. It gives a common description of
and information for this heat pump indoor unit.
• Keep the water temperature of the system above the
freezing temperature.
3.2 MINIMUM FLOOR AREA REQUIREMENTS
• The following chart and table shows the minimum floor area
(A ) required for the installation of an indoor unit from a
min
refrigerant system containing a certain refrigerant charge
(m ) of R32 (A2L refrigerant), and supposing a total room
c
height not lower than 2.2 m. (According to IEC
60335-2-40:2018 and EN 378-1:2016).
For m <1.84 kg, IEC 60335-2-40:2018 and EN 378-1:2016
•
c
do not establish any minimum floor area restriction. In that
case check local regulations to ensure that no hard
restrictions may apply.
A (m )
2
Installation restrictions for indoor units using R32 refrigerant
min
120
100
80
60
40
20
0
1.5 2
Floor mounted
A = (m /(2.5*LFL^
c
min
• A : Minimum installation area of an Indoor unit for a given refrige-
min
rant charge m (kg) and considering the installation height h
c
• h : Installation height of the bottom side of the indoor unit +
0
distance from the indoor unit bottom side to the lowest part for
which a refrigerant leak may release to the indoor area
• m : total system refrigerant charge that could be released to the
c
indoor area in case of undetected refrigerant leak.
• LFL: Lower Flammability Limit for R32, 0,307 kg/m
by EN 378-1:2016 and ISO 817.
m (kg)
2.5 3 3.5
c
Wall mounted Ceiling mounted
(EQU.1)
* h )
(5/4) ^2
0
(m
0
as established
3
Minimum floor area for equipment installed inside
m (kg)
c
1.84
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
• The A in the table above is calculated according to the formula
min
(EQU.1) under the following conditions:
• Floor mounted: h
0
• Wall mounted: h = 1.8 m
0
• Ceiling mounted: h
• For safety, the A
min
installation by professionals.
!
C A U T I O N
• Do not charge OXYGEN, ACETYLENE, or other flammable and
poisonous gases into the refrigerant because an explosion can
occur. It is recommended that oxygen free nitrogen be charged
for these types of tests cycle when performing a leakage test or an
airtightness test. These types of gases are extremely dangerous.
• Insulate the unions and flare-nuts at the piping connection part
completely.
• Insulate the liquid piping completely to avoid a decrease of
performance; if not, it will cause sweating on the surface of the pipe.
• Charge refrigerant correctly. Overcharging or insufficient charging
could cause a compressor failure.
• Check for refrigerant leakage in detail. If a large refrigerant leakage
occurred, it would cause difficulty with breathing or harmful gases
would occur if a fire were being used in the room.
• If the flare nut is tightened too hard, the flare nut may crack after a
long time and cause refrigerant leakage.
• The heat pump indoor unit is suitable for the floor mounted condition
(h = 0.6m) for most installations.
0
).
2
3
A (m ) A (m )
2 2
min min
Floor mounted Wall mounted Ceiling mounted
28.81 3.20
30.72 3.41
34.04
3.78
37.53 4.17
41.19 4.58
45.02 5.00
49.02 5.45
53.19 5.91
57.53 6.39
62.04 6.89
66.72 7.41
71.58 7.95
76.6 8.51
81.79 9.09
87.15 9.68
92.68 10.30
98.39 10.93
104.26 11.58
= 0.6 m
= 2.2 m
0
must be calculated according to the actual
A (m )
2
min
2.14
2.29
2.53
2.79
3.06
3.35
3.65
3.96
4.28
4.61
4.96
5.32
5.70
6.08
6.48
6.89
7.32
7.75