Galletti PERFORMA MPE Series, Техническое руководство

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MPED
22
-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 20
AI
R
TEM
P
(
°
C)
T
W2
( ° C)
opz 1
opz 1+2
opz 1+2 opz 1+2
EEV
EEV
STD
opz 2
opz1+EEV
EEV
All copying, even partial, of this manual is strictly forbidden RG66012163 - Rev 00
8.2 OPERATING LIMITS IN HEAT PUMP MODE
RH Relative humidity of outdoor air
Tbs1 Outdoor temperature (dry bulb)
Tw2 Water outlet temperature
Heat pump operation within the right area of the extended operating envelope
(beyond standard limits) can be allowed only for units equipped with
condensation control (or EC fans) and electronic expansion valve�
Parameters F08-F093-F03 refer to standard microprocessor controller�
Parameters GAIN and INT TIME are regulation parameters; they have to be
modified inside the electronic expansion valve driver� Both modifications
should only made in the factory or implemented on the field, but only by
Galletti's authorized personnel�
8.3 THERMAL CARRIER FLUID
The units belonging to the MPED series can work with mixtures of water and up to 35% ethylene glycol�
8 OPERATING LIMITS
The graphs below illustrate the operating limits of MPED (in the case of continuous operation) in relation to the outlet water temperature and outdoor air
temperature�
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�
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 50
2
Thermal differential of water (°C) 3 8 3 8
Outdoor air temperature (°C) 15
3
45 -5 20
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
8.1 OPERATING LIMITS IN CHILLER MODE
TBS1 Outdoor temperature (dry bulb)
Tw2 Water outlet temperature
OPZ 1 Condensation control
OPZ 2 low temperature option
OPZ 1+2 Condensation c low temperature option
EEV
Electronic valve
STD Standard