Thermal Solutions EVCA SERIES, Installation, Operating And Service Instructions

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93
F.
SYSTEM CONFIGURATION MENU
EVCA Modulating Fire Test Procedures and Specifications
Page 13 of 22
APPENDIX D (Cont…) – TSBC
TM
SYSTEM CONFIG Menu
Display
Factory
Settings
Range
Description
DHWP Off
Off
Isolated
Demand
Shared
Demand
Enables Domestic Hot Water Priority (DHWP) control feature. When input (DP) is
energized DHWP becomes active as selected.
Off: No DHWP.
Isolated Demand: Boiler that receives the input (DP) drops off the Peer-To-Peer
network and it’s temperature setpoint is adjusted above the DHWP
Setpoint. The PID output is based on boiler outlet temperature and
setpoint. If Remote SP or Remote System temperature sensors were
selected, control is switched to the Boiler Outlet Sensor.
Shared Demand: If the lead boiler receives the input (DP) the temperature setpoint for
all boilers on the peer-to-peer network is adjusted above the DHWP
Setpoint.
Remote
Control
No
No
Remote
SP
Modbus
SP
Remote
Mod
Modbus
Mod
Sets the remote (Energy Management System) control mode as follows.
No: Local setpoint and modulation rate is used. Modbus and remote
input (C+,C-) are ignored.
Remote SP: Remote Input (C+, C-) is used as the temperature setpoint.
Parameter 22 & 23 may be used to adjust the signal range.
Modbus SP: RS485 Modbus (40006) is used as the temperature setpoint.
Remote Mod: Remote Input (C+, C-) is used as the modulation rate.
Modbus Mod: RS485 Modbus (40006) is used as the modulation rate.
Remote
1.0 volt =
140
60 F to
170 F
Sets the temperature corresponding to input (C+,C-) 1V. Voltage below 1V is
considered invalid, (failed or miss wired sensor).
Only visible when Remote Control equals
Remote SP
.
Remote
9.0 volt =
220
150 F to
220 F
Sets the temperature corresponding to input (C+,C-) 9 Volts. Voltage above 9V is
considered invalid, (failed or miss wired sensor).
Only visible when
Remote Control
equals
Remote SP
.
Remote
Sensor
Control
No
Display
Only
Control
Enables the Remote System Temperature sensor display and control logic.
No: Remote Sensor Input (R+.R-) is ignored.
Display Only: Remote Sensor Input (R+,R-) is used for display only.
Control: Remote Sensor Input (R+,R-) is compared with the temperature
setpoint to establish a modulation rate.
System
Pump
No
No
Yes
Enables the System Pump output (SP).
LWC
or
CAD
Yes
(If
applicable)
No
Yes
Specifies a Low Water Cut-off Switch or Combustion Air Damper (Fresh Air Damper).
Open switch is connected to input (LC). Enables Limit Hold and Alarm Messages.
“Low
Water
Level”
“Low
Water
Level”
16 Text
Characters
Only visible if LWC or CAD is selected. The Limit hold and Alarm message displayed
corresponding to the sensor connected to input (LC). The “Enter” key and “Up” and
“Down” arrow keys are used to change the text message.