Dry Contact Board Control - Lennox ASC Series Installation, Operating And Maintenance Manual

2. INSTALLATION
2.7.- ELECTRICAL CONNECTIONS

2.8.- DRY CONTACT BOARD CONTROL

The AIRCOOLAIR condensing unit can be remotely controlled via dry contacts on the BM60 and BE60.
The expansion board BE60 is an additional board fi xed on DIN rail. This board is supplied in stand on AIRCOOLAIR condensing
unit.
Description of the various connectors :
1 Power supply of the board
2 Analog output 0/10V : not used
3 Network bus to the CLIMATIC 60 BM60
4 4 digital inputs : dry contacts only
5 LED status of the network bus
6 Serial address dip-switch of the network bus
7 4 analog input confi gurable by pair B1-B2 and B3-B4
8 4 digital outputs : dry contact only
6 digital inputs are dry contacts. They are factory confi gured as follow :
2 inputs on the BM60
• BM-J4-ID4 : TCB B = Cooling/Heating - Contact closed = the unit operates in heating mode and open contact = the unit opera-
tes in cooling mode
• BM-J4-ID7 : TCB G = On/Off - Contact closed = On.
4 inputs on the BE60
• BE-J4-ID1 : TCB Y1 = 50% power engaged when the contact is closed
• BE-J4-ID2 : TCB Y2 = 100% power engaged when the contact is closed
• BE-J4-ID3 : Available
• BE-J4-ID4 : Available
• 24 •
COMFORT AND SERVICE TERMINAL CONNECTION
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019