Thermal Solutions APEX APX425C Installation, Operating And Service Instructions page 76

9
System Start-up
Table 9-10: Control Parameter Checklist
Parameter
Step
Location
Adjust >>
1
System
Adjust >>
2
Modulation
Adjust >>
3
Pumps
Adjust >>
4
Service Contacts
Adjust >>
5
Central Heat
Adjust >>
6 Domestic Hot
Water
Adjust >>
7
Outdoor Reset
Adjust >>
8 Sequencer
Master
Adjust >>
9
Sequencer Slave
EMS >>
10
Modbus Setup
EMS >> Remote
11
Demand
76
(continued)
Parameter
Outdoor Sensor Source
Warm Weather
Shutdown Enable/
Disable
Boiler Model
Boiler Pump
System Pump
Domestic Hot Water
Pump
Contractor
Service Company
Sales Representative
Setpoint
Setpoint
DHW Modulation
Sensor
Enable/Disable
Sequencer Master
Boiler Address
EMS Enable/Disable
Modulation Source
Central Heat Setpoint
Source
APEX Installation, Operating, & Service Instructions
Select appropriate source: Not Installed, Wired, Wireless, or
Modbus.
Selecting Enable will restrict boiler start during warm
weather, but only if an outdoor sensor is installed.
WARNING!
Confirm correct boiler model is shown. Stop installation and
contact factory if incorrect boiler model is shown.
Ensure pump parameter selections are correct for your
application.
Enter contact information. In the event of a fault, or the need
to adjust a setting, the display will direct the user to the
entered contact.
Ensure target space heating water temperature (Setpoint) is
correct for your type of radiation.
Ensure target domestic hot water temperature (Setpoint) is
correct.
If using DHW Sensor, select DHW Sensor.
If not using an outdoor sensor, select Disable.
If boiler is the master boiler in a multiple boiler installation,
select Enable.
If boiler is a slave boiler in a multiple boiler installation,
assign a unique boiler address.
If boiler is connected to an energy management system,
select Enable.
If using an external multiple boiler controller, set to 4-20 mA.
If an Energy Management System is sending a remote
setpoint to the boiler, set to 4-20 mA.
Description
106308-05 - 3/23