tekmar 284 Boiler Control - Manual (Page 42)

© 2014 284_D - 08/14 42 of 60 A Watts Water Technologies Company
Setup Menu (6 of 6)
Item Field Range Description
2 to 10°F
(1.0 to 5.5°C)
Default: 5°F (3.0°C)
Access: ADV
DEDICATED DHW DIFFERENTIAL
The temperature differential of the dedicated DHW tank from the DDHW SETPOINT
settings.
This item is only available when Application Mode is set to DDHW.
OFF, AUTO, 0:20 to
4:00 hrs
Default: OFF
Access: ADV
PRIORITY OVERRIDE
The amount of time priority is given for indirect DHW or setpoint operation before
space heating resumes.
This item is only available when Application Mode is set to RSET or EMS, &
Indirect DHW Mode is set to ON & Indirect DHW Priority is set to ON, or Setpoint
Mode is set to ON & Setpoint Priority is set to ON.
35 to 100°F, OFF
(2.0 to 38.0°C)
Default: 70°F (21.0°C)
Access: ADV
WWSD OCCUPIED
The system’s warm weather shutdown temperature during the occupied
periods.
This item is only available when the Application Mode is set to RSET.
35 to 100°F, OFF
(2.0 to 38.0°C)
Default: 60°F (15.5°C)
Access: ADV
WWSD UNOCCUPIED
The system’s warm weather shutdown temperature during the unoccupied
periods.
This item is only available when the Application Mode is set to RSET & the Setback
/ Off switch is set to Setback.
OFF, 3 to 40 min
Default: 20 min
Access: ADV
BOILER ALERT
Alert signal if the boiler supply temperature does not increase in temperature, after
all available boilers have been turned on, within the selected time.
OFF or ON
Default: OFF
Access: ADV
FLOW SENSOR
Selects whether or not a flow sensor is used.
0 to 100 gpm
Default: 0 gpm
Access: ADV
FLOW RATE 4MA
Sets the flow rate that corresponds to 4 mA for the flow sensor.
This item is only available when Flow Sensor is set to ON.
100 to 2,000 gpm
Default: 500 gpm
Access: ADV
FLOW RATE 20MA
Sets the flow rate that corresponds to 20 mA for the flow sensor.
This item is only available when Flow Sensor is set to ON.
OFF, 1 to 100%
Default: OFF
Access: ADV
FLOW SENSOR PROOF
Sets the percentage of flow used for proving primary pump flow. If the flow sensor
is only used for monitoring, set to OFF. This is the minimum flow required to prove
primary pump flow.
This item is only available when Flow Sensor is set to ON.
OFF or ON
Default: OFF
Access: ADV
PRESSURE SENSOR
Selects whether or not a pressure sensor is used.
50, 100, 150, 200, 250,
300
Default: 50
Access: ADV
PRESSURE SENSOR RANGE
Selects the model of pressure sensor based on the pressure range in units of
PSI.
This item is only available when Pressure Sensor is set to ON.