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2.2.1
Limits to the use – Minimum area of the conditioned space and maximum
refrigerant charge
Clause GG.9 of Annex GG within the standard IEC 60335-2-40:2018 (Household and similar electrical appliances -
Safety - Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers) defines the
charge limits based on the total conditioned space area and the ventilation requirements for ducted appliances using
A2L refrigerants. For full details refer to the standard IEC 60335-2-40:2018.
The minimum total conditioned room area "TA
accordance with following:
The minimum total conditioned room area "TA
accordance with following:
For units without hot gas post heating coil
Unit
Circuit 1
UATYA25
6,0
UATYA30
11,5
UATYA40
12,4
UATYA50
15,0
UATYA60
18,0
UATYA70
18,0
UATYA80
23,0
UATYA90
24,0
UATYA100
28,0
UATYA110
30,0
UATYA120
34,0
UATYA140
19,0
UATYA150
19,0
UATYA160
23,0
UATYA180
23,5
UATYA190
25,0
No zoning dampers shall be installed in the rooms considered to determine the minimum room area
unless these zoning dampers can be fully opened by the control signal of the rooftop in case of a leak
If the refrigerant charge is adjusted on the field, the minimum area must be re-evaluated in order to be always above
the result obtained through the following formula:
where
- m
is the refrigerant charge added on the field in kg.
added
The sum "m
c
The minimum area according to the area of the conditioned space is shown below
Translation from original instructions
Packaged Rooftop
14
" of installed appliance with refrigerant charge "m
min
" of installed appliance with refrigerant charge "m
min
m
c
[kg]
Circuit 2
-
-
-
-
-
-
-
-
-
-
-
19,0
19,0
23,0
23,5
25,0
+m
" must be lower than 79,8 kg for each circuit.
added
90
80
70
60
50
40
30
20
10
0
0
50
Fig. 1 Total min. installation area
For units with hot gas post heating coil
TA
min
m
2
Circuit 1
17,8
7,3
34,1
12,8
36,7
13,7
44,4
17,0
53,3
21,0
53,3
21,0
68,
26,9
71,1
28,0
83,0
32,3
88,8
34,7
100,7
39,2
56,3
20,6
56,3
20,6
68,1
24,6
69,6
26,2
74,0
27,7
100
150
200
[m²]
" (kg) shall be in
c
" (kg) shall be in
c
m
TA
c
[kg]
Circuit 2
-
21,6
-
37,9
-
40,6
-
50,4
-
62,0
-
62,0
-
79,6
-
83,0
-
95,7
-
102,8
-
116,1
20,6
61,0
20,6
61,0
24,6
72,8
26,2
77,6
27,7
82,0
250
We reserve the right to make changes without any prior notice.
min
m
2
UATYA
4P645202-2
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