10. OPERATIONAL LIMITS
10.1. COOLING MODE
10.2. HEATING MODE
The units, in standard configuration, are not suitable
for installation in salty environments.
For functioning limits, please refer to the diagrams,
valid for
∆
t 5°C/10°F.
0
5
10
15
20
25
30
35
40
45
50
55
60
32
40
50
60
70
80
90
100
110
120
130
140
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
42
-4
113
-5
0
5
10 15 20 25 30 35 40 45 50 55 60 65 70 80 85 90 95 100 105 110
EXTERNAL AIR TEMPERATURE d.b.
PR
ODUCED
W
ATER
TEMPERA
TURE
C
ONDENSER
ATTENTION
In windy areas, for correct
operation of condensing control
it is recommended to install a
windbreak barrier.
It should be installed if wind velocity
is beyond 2,5 m/s.
0
10
20
30
40
50
60
70
80
90
100
110
120
122
-5
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19
°C
35,6
40
45
50
55
60
65
66,2
°F
EXTERNAL
AIR
TEMPERA
TURE
(d.b.)
PRODUCED WATER TEMPERATURE EVAPORATOR
COOLING MODE
PRODUCED WATER TEMPERATURE EVAPORATOR
35,6
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19
°C
40
45
50
55
60
65
66,2
°F
25
30
35
40
45
50
55
60
77
80
90
100
110
120
130
140
C TOTAL RECOVERY
PR
ODUCED
W
ATER
TEMPERA
TURE
RE
C
O
VER
Y
In summer mode, the unit can be started with
external air 46°C/114,8°F and inlet water 35°C/95°F.
In winter and RECOVERY mode, the unit can be
started with external air -15°C/5°F and inlet water
20°C/68°F.
In these conditions, operation is only allowed for a
short amount of time and to bring the system to the
proper temperature.
To shorten this operation, it is recommended to
install a three-way valve which makes it possible to
bypass the water from the utilities to the plant, until
achieving conditions which allow the unit to work
within the allowed operating limits.
In summer mode, the unit can be started with
external air 46°C/114,8°F and inlet water 35°C/95°F.
In winter and RECOVERY mode, the unit can be
started with external air -15°C/5°F and inlet water
20°C/68°F.
In these conditions, operation is only allowed for a
short amount of time and to bring the system to the
proper temperature.
To shorten this operation, it is recommended to
install a three-way valve which makes it possible to
bypass the water from the utilities to the plant, until
achieving conditions which allow the unit to work
within the allowed operating limits.
18
INRP260HzTY. 1312. 5806717_03
