Boiler Control Instruction & Operation Manual
Page 3
2
of
68
Setup & Tuning
Parameter Adjustment
System
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.
Not Installed
Not Installed,
Wired,
Modbus,
Wireless
Outdoor Sensor Source
Not Installed Outdoor Sensor is not connected to the boiler, the sensor is not
monitored for faults.
Wired
Outdoor Sensor thermistor is installed directly on the boiler terminal
strip.
Modbus
Outdoor temperature is retrieved through the Modbus connection from
another boiler or Energy Management System.
Wireless
Wireless outdoor sensor is installed. Honeywell Wireless Outdoor Air
Reset Adaptor part number 105766-01 is a wireless outdoor air sensor.
The package includes a W ireless Receiver Module and W ireless
Outdoor Sensor. The sensor communicates wirelessly to the receiver
module. The receiver module is wired to the Control EnviraCOM
terminals. Refer to wiring section for more information.
0 degrees
-50 to 50
degrees
Outdoor Sensor Calibration
Outdoor sensor calibration allows a single point adjustment of the outdoor sensor
reading. This adjustment is a correction offset added to or subtracted from the outdoor
temperature sensor reading. It is recommended to make any calibration when outdoor
air temperature is at or near the most common operating point. For example, when
necessary, calibrate the sensor when outdoor air is halfway between Minimum and a
Maximum Outdoor Temperature parameter value is recommended.
1 Min
0 to 20 Min
Anti-Short Cycle Time
Anti-short cycle is a tool that helps prevent excessive cycling resulting from a fast
cycling enable-disable input (STAT terminal). It provides a minimum delay time before
the next burner cycle. DHW demand is serviced immediately, without any delay.
Enabled
Enable/Disable
CH 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:
32 (ºF)
-50 to 50 (ºF)
CH Frost Protection Setpoint
Outdoor Temperature at which pumps are started for frost protection.
From the ADJUST menu select the following buttons to view and adjust parameters.
Press
to adjust the following parameters.
Device
Start
Temperatures
Stop Temperatures
Boiler Pump
System Pump
Outside Air < 32°F
Supply Water < 45°F
Outside Air > 36°F
Supply Water > 50°F
Boiler
Supply Water < 38°F
Supply Water > 50°F