28
GB
8.
SUPERVISORY
SYSTEM
7.
ENVIRONMENTALLY
FRIENDLY
REFRIGERANT
TEWI=
m x L x n x GWP
+
ß
x E x n
+
m x (1-
∂
) x GWP
refrigerant losses
unit related factors
unit efficiency
maintenance
recycle
Refrigerant
Type
ODP
GWP
TEWI(*)
R22
HCFC
0,05
1.700
1.968
RI34
HFC
0
1.300
1.821
R407C
HFC
0
1.800
2.092
R410A
HFC
0
1.900
1.756
Legenda:
m:
refrigerant charge in kg
n:
product lifespan in years
GWP:
global warming potential in kg CO
2
ß:
emission of CO
2
in the power plant for each kWh prodacad
E:
annual energy recovery factor at end of life
∂
:
refrigerant recovery factor and of life
(
∂
=0.......on recovery;
∂
=1....... total recovery)
(*) Per year, for each specific kW and considering total recovery at the end of the unit’s life [
∂
As shown in the table below, using R410A means:
8. Supervisory System
JUPITER units have been developed and designed so that they can be inserted within a network which is managed
by a supervision system. They are therefore compatible with the most common external BMS (Building Management
Systems).
Compatibility with external BMS
BMS on serial networks
Modbus
: No limit on the number of units connected, each one has a RS485 serial card
Bacnet
: Max
8
units, each one has a RS485 serial card, connected to a Bacnet Gateway
LONworks
: No limit on the number of units connected, each one has a FTT10 card
TREND
: possible with TREND card
Metasys
: possible with integration of the database and Application Note JCI
BMS on TCP/IP (UTP) networks
SNMP
: Max
16
units, each one has a RS485 serial card, connected to a Webgate
SNMP
: No limit on the number of units connected, each one has a TCP/IP (Pcoweb)
Bacnet
: No limit on the number of units connected, each one has a TCP/IP
HTML
: No limit on the number of units connected, each one has a TCP/IP