35
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
-6
-4
-2
0
2
4
6
8
10
12
14
16
18
Tb
s
1
T
W2
opz 1
opz 1+2
opz 1+2
opz 1+2
EEV
EEV
STD
opz 2
All copying, even partial, of this manual is strictly forbidden
RG66007169 - Rev 00
6 OPERATING
LIMITS
The graphs below illustrate the operating limits of
MPE
units (in the case of continuous operation) in relation to the outlet water temperature and outdoor
air temperature.
6.1
OPERATING LIMITS IN CHILLER MODE
Tbs1
Outdoor temperature (dry bulb)
Tw2
Outlet water temperature
OPZ 1
Condensing
control
OPZ 2
low temperature option
OPZ 1+2
Condensation c low temperature option
EEV
Electronic expansion valve
STD
Standard
Warning
The units are designed to work with water and air temperatures falling within the range defined by the operating limits.
Attempting to operate the units beyond these limits could cause irreparable damage to the units themselves.
1
For transitory periods (e.g. equipment start up) values up to 25 °C are allowed
2
Value that may be reached only for outdoor air temperatures exceeding 0°C.
3
With condensation control: Outdoor air T min -10 °C
OPERATING LIMITS
CHILLER
HEAT PUMP
MIN MAX MIN MAX
Inlet water temperature (°C)
8
20
1
25 42
Outlet water temperature (°C)
5
15
28
53
2
Thermal differential of water (°C)
3
8
3
8
Outdoor air temperature (°C)
15
3
45 -10 20
