• open the electric control board and make s ure the termi nals of the
power suppl y and to the c ontactors are tight (they may have c ome
loose during transport, which coul d lead to malfuncti ons);
• chec k that the coc k positioned on the liquid line is open;
• chec k that the oil level of the c ompressors guard covers at least half
of the indicator;
• chec k that the s ystem inlet and outlet pi pes are connected in
accordance with the arrows next to the water heat exc hanger water
inlet/outlet;
• make sure that the c ondensate c oil is found in good ventilati on
conditi ons and is clean.
• On all units, the microprocess or controller starts the compressors
not before 10 minutes have pass ed fr om the last machine stands till.
The mac hine c an be started now.
I.8
Menu
To access the main menu, pr ess the Prg key for 3 sec onds .
Prg
With the UP and DOW N keys it is possible to scr oll through the
followi ng menu.
a_Mainten ance
Maintenanc e parameters
i_Input/output
Inputs and outputs display
k_Clock
Management of time z ones
s_Set-point
Set-point s etting
p_User
Installer parameters
c_Manufactor y
Manufacturer parameters
h_Summer /W inter
Summer/Winter setting
(with HPH access ory)
m_On-Off Unit
Switc h on and s witc h off
q_Histor y
Alarms histor y dis play
u_Unit change
Setting the display of MASTER or SLAVE
1-2 board parameters
Select the menu desired and press the Mode key.
I.8.1.1
Maintenance parameters
The mas ks referring to the function key are the following:
Hour counter
U:
Pump evap.
000000
Pump cond.
000000
Hour counter
U:
Compressor
000000
Alarms history
AL000 00:00
00/00/00
T.In 00.0 T.Out 00.0
HP
00.0 LP
00.0
Insert
Maintenance password
0000
a_Maintenance
Mask for dis playing evapor ator
pump and condens er hour
count.
Mask for dis play of the
functi oning hours of the
compressor.
Mask for dis play the alarms
histor y.
Mask for entering pass word.
Evaporator pump
Hour counter
Threshold
Req.reset
Condenser pump
Hour counter
Threshold
Req.reset
Compressor
Hour counter
Threshold
Req.reset
Input probes
offset
B1: 0.0
B2: 0.0
B3: 0.0
B4: 0.0
Input probes
offset
B5: 0.0
B6: 0.0
B7: 0.0
B8: 0.0
Input probes
offset
B9: 0.0
B10: 0.0
Compressor enable
C1:Y C2:Y C3:Y C4:N
Erase alarms
history memory
I.8.1.2
Inputs and outputs
display
The mas ks referring to the function key are the following:
Rhoss s.p.a.
CODE:XXXXXXXXXXXXXXXX
Vers.:XXXXXXXXXXXXXXX
Language:
Digital inputs
CCCCCCCCCCCC
Digital outputs
0000000000000
C=closed contac t (protection NOT INTERVENED)
O=contac t open (protection
C=closed contac t (output
O=open contac t (output with relay NOT ACTIVATED)
Analogue inputs
B1:
B2:
The followi ng screens are li ke the pr evious ones, onl y the i nputs refer to
probes B3, B4, B5, B6, B7, B8, B9, B10.
An.outputs
Y0:
Y1:
48
SECTION I: USER
U:
Mask for evaporator pump
maintenanc e ti me alarm
000x1000
configuration and reset.
N 000000
Mask for condens er pump
maintenanc e ti me alarm
000x1000
configuration and reset.
N 000000
U:
Mask for compr essor
maintenanc e ti me alarm
000x1000
configuration and reset.
N 000000
Mask for entering pr obes offset.
Mask for entering pr obes offset.
Mask for entering pr obes offset.
Mask for enabling compressors.
N
Mask for cancelling the al arms
histor y.
i_Input/Output
Mask for dis play of the
application version.
Display of the state of the
inputs and outputs .
Digital inputs:
INTERVENED)
Digital outputs:
with relay
ACTIVATED)
Mask for dis play of the
00.0Bar
anal ogue inputs .
00.0Bar
Mask for dis play of the
00.0V
anal ogue outputs .
00.0V