Service – Lochinvar ArmorX2 1.5 User Manual
Page 18

Service/Setup Parameters Screen:
1
Service
The Service / Setup Screen allows access to 10 parameters. 
Those parameters are as follows:
 • Demand Configuration - Sets the configuration of the 
 control modules inside the water heater. The 
 configuration selections are:
 
 Demand Configuration 1: Cascade Set Point Thermostat 
 based - the control modulates the water heater based on the 
 user set point and the temperature of the tank sensor. 
 Demand Configuration 2: Cascade BMS Thermostat 
 based - a 0 - 10Vdc signal is provided to the water heater 
 to control either the set point or the modulation of the 
 water heater. 
 Demand Configuration 3: Cascade BMS Voltage based - a 
 0 - 10Vdc signal is provided to the water heater to control 
 either set point or modulation. A minimum voltage signal is 
 required to initiate a call for heat.
 Demand Configuration 4: Cascade Set Point Modbus 
 Thermostat based - the control modulates the water 
 heater based on the tank set point and the temperature of the 
 tank sensor. An enable signal is provided by writing 
 to the holding registers on the Modbus communication 
 board.
 Demand Configuration 5: Cascade Modbus BMS 
 Thermostat based - a 0 - 10V dc signal is provided to the 
 water heater to control either the set point or the modulation 
 of the water heater. An enable signal and an equivalent 0 - 
 10V signal is provided by writing to the holding registers on 
 the Modbus communication board.
 
Demand Configuration 6: Cascade Modbus BMS Voltage 
based on a 0 - 10V dc signal is provided to the water heater to 
control either set point or modulation. An equivalent 0 - 
10V dc signal is provided by writing to the holding registers 
on the Modbus communication board.
When any of these BMS configurations are selected, additional 
parameters for BMS operation will have to be adjusted. Reference 
the BMS parameters on pages 23 and 24 for information 
regarding adjusting these parameters. There are three (3) other 
configuration selections that are possible, however, they must 
NOT be used on the Armor X2 water heater.
This parameter can only be changed by the installer. The default 
configuration is Cascade Set Point Thermostat based.
 • Service Notification Time - When the water heater 
 determines that a scheduled service is due based on days of 
 installation, the Service Needed screen will appear. This 
 parameter can only be changed by the installer. The 
 adjustment range for this parameter is 0 months to 36 
 months. The default time is 12 months. 
 • Service Notification Running Hours - When the water 
 heater determines that a scheduled service is due based on the 
 hours of actual operation. This parameter can only be 
 changed by the installer. The adjustment range for this 
 parameter is 0 hours to 100,000 hours. The default time is 
 10,000 
hours.
 • Service Notification Cycles - When the water heater 
 determines that a scheduled service is due based on the 
 number of water heater cycles, the Service Needed screen will 
 appear. This parameter can only be changed by the 
 installer. The range for this parameter is 0 cycles to 100,000 
 cycles. The default is 10,000 cycles. 
 
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Service Manual
