48
AW HT
GB 05/2009
Parameter
number
Description
Input EX1
Input EX2
Input EX3
Input EX4
Input EX5
Input EX6
Input EX7
Default setting
Flow switch
Low pressure switch
High pressure switch
Compressor protector for high power input
Remote heat pump off SA3
Low rate signal from electricity company SA4
Not used
7911
7912
7913
7914
7915
7916
7917
Parameters contained on the INPUT/OUTPUT TEST operating page
Parameters from 7911 to 7917 are used to test the ‘E’ group of inputs
TEST CONTACT INPUT E
The message 0 V indicates that there is no voltage and the corresponding input is currently inactive. The message 230 V indicates that voltage
is available at the corresponding input and it can be activated.
(OEM level)
The heat pumps can be fitted with a single-phase or three-phase peak limiter to reduce compressor start-up current.
Peak limiter single-phase
The LED on the peak limiter identifies different operating or alarm conditions based on the sequence of flashes:
• 2 flashes every 5 sec.: line voltage present, correct operation
• LED on for 5 sec. and LED off for 5 sec.: peak limiter faulty
• quick flashes for 10 sec.: line voltage out-of-range
Three-phase peak limiter
The three-phase peak limiter has 2 built-in indicator LEDs.
The green LED indicates line voltage is present and correct operation.
The red LED identifies different alarm conditions based on the sequence of flashes, as shown in the enclosed table.
PEAK LIMITER ALARM SIGNALS
A
Number of flashes
of red LED
Condition
Incorrect phase sequence
Line voltage out-of-range
Frequency out-of-range
Locked rotor (during ramp)
Ramp starting > 1 sec
Excess temperature
Low current (during bypass)
Voltage unbalanced
Action
Reverse phases
Autoreset with 5 minute reset time
Autoreset with 5 minute reset time
Autoreset with 5 minute reset time
Autoreset with 5 minute reset time
Automatic reset
Autoreset with 5 minute reset time
Autoreset with 5 minute reset time if all three phases
(L1, L2, L3) are connected
2
3
4
5
6
7
8
9
Alarms
