85
X. Operation
G. Changing Adjustable Parameters (continued)
2. Adjusting Parameters (continued)
From the “Home” screen select the Adjust button to access the adjustment mode screens shown below (if required, refer to
the previous page to review how to enter Adjustment mode):
The following pages describe the
Control’s adjustable parameters.
Parameters are presented in the order
they appear on the Control’s Display,
from top to bottom and, left to right
Pump
Setup
- More -
Manual
Control
Contractor
Setup
System
Setup
Modulation
Setup
Outdoor
Reset
Remote
4-20mA
Central
Heat
Domestic
Hot Water
Sequence
Master
Sequence
Slave
“Press”
System
Setup
button to access the following parameters:
Factory
Setting
Range /
Choices
Parameter and Description
Fahrenheit
Fahrenheit,
Celsius
Temperature Units
The Temperature Units parameter determines whether temperature is represented in units of
Fahrenheit or Celsius degrees.
4
0-14
Display Brightness
Display brightness is adjustable from 0 to 14.
8
0-14
Display Contrast
Display contrast is adjustable from 0 to 14.
Wired
Not Installed,
Wired
Wireless
Outdoor Sensor Source
Not Installed Outdoor Sensor is not connected to the boiler, the sensor is not monitored for faults.
Wired Outdoor Sensor is installed directly on the boiler terminal Strip-TB2.
Wireless Outdoor sensor is installed and wireless.
Enabled
Enable/Disable
Frost Protection
Disable Frost Protection is not used.
Enable Boiler and system circulators start and boiler fires when low outside air, supply and
return temperatures are sensed as follows:
0 Secs
0-900 Secs
Anti-Short Cycle Time
Anti-short cycle is a tool that helps prevent excessive cycling resulting from a fast cycling
Thermostat or Zone valves. It provides a minimum delay time before the next burner cycle. DHW
demand is serviced immediately, without any delay.
Disabled
Enable/Disable
Warm Weather Shutdown Enable
Disable Warm Weather Shutdown (WWSD) is not used.
Enable
The boiler will not be allowed to start in response to a central heat call for heat if the
outside temperature is greater than the WWSD setpoint. WWSD is initiated as soon
as outside air temperature is above WWSD Setpoint. The control does not require
call for heat to be satisfied.
The boiler will still start in response to a Domestic Hot Water call for heat.
70°F
0-100°F
Warm Weather Shutdown Setpoint
The Warm Weather Shutdown (WWSD) Setpoint used to shutdown the boiler when enabled by the
“WWSD Enable” parameter.
Device
Started
Start
Temperatures
Stop
Temperatures
Boiler & System
Outside Air < 0°F (-18°C)
Outside Air > 4°F (-16°C)
Содержание APEX
Страница 6: ...6 I Product Description Specifications and Dimensional Data continued Figure 1A Apex Model APX425 ...
Страница 7: ...7 Figure 1B Apex Model APX525 I Product Description Specifications and Dimensional Data continued ...
Страница 9: ...9 I Product Description Specifications and Dimensional Data continued Figure 1D Apex Model APX825 ...
Страница 57: ...57 VIII Electrical continued Figure 26 Ladder Diagram ...
Страница 58: ...58 VIII Electrical continued ...
Страница 59: ...59 Figure 27 Wiring Connections Diagram VIII Electrical continued ...
Страница 68: ...68 IX System Start up continued Apex Series Operating Instructions Figure 34 Operating Instructions ...
Страница 105: ...105 ...
Страница 109: ...109 XIII Repair Parts continued APX625 APX725 and APX825 APX825 shown ...
Страница 112: ...112 XIII Repair Parts continued APX425 and APX525 ...
Страница 114: ...114 XIII Repair Parts continued APX625 APX725 and APX825 ...
Страница 122: ...122 ...
Страница 123: ...123 ...