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USER MANUAL – Release 1.2 of 01/01/2010
Page 151 of 191
Version: 02/03/2010
55. AUXILIARY RELAY FUNCTION
One completely configurable relay output per circuit is available to the user, also released from normal
working of the controlled unit.
The relay outputs can be managed by analogue inputs in dedicated temperature or pressure mode (circuit n°
auxiliary output NTC temperature probe or circuit n° 4..20 mA pressure probe /ratiometric 0 ÷ 5 Volt auxiliary
output) or managed with all of the other configurations in temperature or pressure.
Values and meanings
0 = Output not enabled
1 = Output always enabled with direct action working also in stand-by/OFF/remote
2= Output enabled with direct action working only with unit in ON (with cooling heating working mode
enabled) otherwise not enabled
3 = Output always enabled with reverse action working also in stand-by/OFF/remote
4= Output enabled with reverse action working only with unit in ON (with cooling heating working mode
enabled) otherwise not enabled
55.1 DIRECT ACTION WORKING ENABLED
If:
PBr < set, activates the relay
Pbr > set + differential deactivates the relay
Set < PBr < set + differential maintain the previous status
55.2 REVERSE ACTION WORKING ENABLED
If:
PBr > set, activates the relay
Pbr < set – differential deactivates the relay
Set – differential < PBr < set maintain the previous status
