17
Heat pump operation
To call up the
"Heat pump"
page, tap on the following
buttons:
■
"Menu"
■
"Heat pump"
Fig. 10
For compressor 1, 2 and 3, see the following chap-
ter
White Switched OFF
Green Switched ON
Red
Fault
A
"Low press."
evaporation temperature, calculated
from pressure
B
Inlet temperature, evaporator
C
Outlet temperature, evaporator
D
Electronic expansion valve (EEV) with degree of
opening
E
3-way valve, compressor superheating, with
degree of opening
F
Room temperature
G
Casing temperature
H
"High press."
condensing temperature, calculated
from pressure
J
Inlet temperature, condenser
K
Hot gas temperature
L
Outlet temperature, condenser
M
Oil pressure differential
N
Suction gas temperature downstream of IHE
O
Compressor superheating downstream of IHE
P
Internal heat exchanger (IHE)
R
Evaporation superheating
S
Suction gas temperature downstream of evapora-
tor
Operation
Programming unit
(cont.)
5801 531 GB
