Assembly instructions
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89014665; 2022-04
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7
9
Connection examples for different dosing device types
9.1
Connect and adjust detergent dosing device
Dosing device with fixed output and time relay
For dosing devices with fixed output and a time relay, only post-dosing can be controlled. The pre-dosing can also be controlled with
two time relays.
With one time relay:
Ø
Ø
Set time relay on the dosing device.
ð
When the wash pump is running, detergent is dosed during the set time.
With two time relays:
Ø
Connect a time relay to the FILL terminal (
).
Ø
Set detergent dosing device to “While machine fills” (P704 = 0) (
).
Ø
Set the time relay on the dosing device for dosing during the initial filling of the warewasher.
ð
When the warewasher is filled for the first time, detergent is dosed during the set time.
Ø
Connect a time relay to the WASH terminal.
Ø
Set time relay on the dosing device.
ð
When the wash pump is running, detergent is dosed during the set time.
Dosing device with adjustable output
For dosing devices with an adjustable output, detergent can be dosed in parallel with the opening time of the solenoid valve. Detergent
is then dosed during the initial filling of the tank and with each rinse. The output must be adjusted to the flow rate of the solenoid valve.
Calculating the output:
– Flow rate solenoid valve [l/min] x desired concentration [ml/l] = output [ml/min]
– Example: 4 l/min x 3.0 ml/l = 12.0 ml/min
Ø
Connect to the FILL terminal (
Ø
Set output on the dosing device.
Ø
Set detergent dosing device to “Parallel to solenoid valve” (P704 = 1) (
ð
During the initial filling and when the rinse pump is running, detergent is dosed at the set output.
9.2
Connect and adjust the rinse aid dosing device
Dosing device with fixed output and time relay
Ø
Connect to RINSE terminal.
Ø
Set time relay on the dosing device.
Ø
Set the rinse aid dosing device to “Parallel to rinse pump” (P709 = 1) (
ð
When the rinse pump is running, rinse aid is dosed during the set time.
Dosing device with adjustable output
Calculating the output:
– Flow rate solenoid valve [l/min] x desired concentration [ml/l] = output [ml/min]
– Example: 4 l/min x 0.3 ml/l = 1.2 ml/min
Ø
).
Ø
Set output on the dosing device.
Ø
Set the rinse aid dosing device to “Parallel to rinse pump” (P709 = 1) (
ð
When the rinse pump is running, rinse aid is dosed with the set output.