Mitsubishi Electric QAHV Série Manuel D'installation & D'instructions page 49

Setting the water temperature using analog signal input
Select the analog input format
• When the water temperature setting input signal type is set to 0 (4-20 mA)
• External analog input signal of between 5.9 and 15.8 mA: the preset temperature will be linearly interpolated.
temp B 80ºC (176ºF)
temp A 40ºC (104ºF)
• When the water temperature setting input signal type is set to 1 (0-10 V)
• External analog input signal of between 1.0 and 7.5 V: the preset temperature will be linearly interpolated.
temp B 80ºC (176ºF)
temp A 40ºC (104ºF)
• When the water temperature setting input signal type is set to 2 (1-5 V)
• External analog input signal of between 1.5 and 3.9 V: the preset temperature will be linearly interpolated.
temp B 80ºC (176ºF)
temp A 40ºC (104ºF)
• When the water temperature setting input signal type is set to 3 (2-10 V)
• External analog input signal of between 2.9 and 7.9 V: the preset temperature will be linearly interpolated.
temp B 80ºC (176ºF)
temp A 40ºC (104ºF)
5.9 mA 15.8 mA Input current
1.0 V 7.5 V Input voltage
1.5 V 3.9 V Input voltage
2.9 V 7.9 V Input voltage
GB-49
Preset temperature = (B - A) * (Input current - 5.9 mA) / 9.9 mA + A
Change of 0.12 mA or less is not recognized.
• Minimum setting temperature: 46ºC (115ºF)
(Input signal: 7.4 mA)
Preset temperature = (B - A) * (Input voltage - 1.0 V) / 6.5 V + A
Change of 59 mV or less is not recognized.
• Minimum setting temperature: 46ºC (115ºF)
(Input signal: 2.0 V)
Preset temperature = (B - A) * (Input voltage - 1.5 V) / 2.4 V + A
Change of 29 mV or less is not recognized.
• Minimum setting temperature: 46ºC (115ºF)
(Input signal: 1.9 V)
Preset temperature = (B - A) * (Input voltage - 2.9 V) / 5.0 V + A
Change of 59 mV or less is not recognized.
• Minimum setting temperature: 46ºC (115ºF)
(Input signal: 3.7 V)