Laars MagnaTherm HTD Series Installation And Operation Instructions Manual page 41

Handset, Display and
Operating Unit.
For Certified and
Trained Field
Techs Only.
12 Volt DC Power
Supply
O2 Sensor
Controller
Figure 20. Control Panel Components
ANALOG
POWER OUTPUTS DRY CONTACTS
HEAT DEMANDS
INPUT
HTD
LMV Controller Assembly
H2395300-
RUN RELAY CASCADE
ANALOG ALARM RELAY
SENSOR INPUTS
CONTACTS RS485
OUTPUT CONTACTS
ANALOG
120 VAC 24 VAC POWER OUTPUTS DRY CONTACTS SENSOR INPUTS HEAT DEMANDS
INPUT
BMS RS485 HEAT DEMANDS
Lead
Low Water Cut-Off
Linc Controller
Assembly
Field Connections
Terminal Block
ANALOG RUN RELAY ALARM RELAY CASCADE
BMS RS485
OUTPUT CONTACTS CONTACTS RS485
RUN RELAY
ANALOG ANALOG ALARM RELAY
CONTACTS
INPUT OUTPUT CONTACTS
Page 37
CASCADE
BMS RS485
RS485
Lag