tekmar 284 Boiler Control - Manual (Page 38)

© 2014 284_D - 08/14 38 of 60 A Watts Water Technologies Company
Setup Menu (2 of 6)
Item Field Range Description
OFF, 60 to 180°F
(OFF, 15.5 to 82.0°C)
Default: 140°F (60.0°C)
Access: ADV
BOILER MINIMUM
The minimum allowed boiler target temperature used for the non-condensing
boiler group. Check the boiler manufacturer’s manual for recommended minimum
boiler supply temperatures.
This item is only available if there is at least one boiler set to auto
(Boiler Enable = AUTO) & non-condensing (Boiler Condense = NO).
90 to 225°F, OFF
(32.0 to 107.0°C, OFF)
Default: 200°F (93.0°C)
Access: ADV
BOILER MAXIMUM
The maximum allowed boiler target temperature.
PUMP or VALV
Default: PUMP
Access: ADV
PLANT FLOW
Selects whether each boiler is to use a pump or valve.
AUTO, 2 to 42°F
AUTO, 1.0 to 23.5°C
Default: AUTO
Access: ADV
BOILER DIFFERENTIAL
The temperature differential that the control is to use to cycle the boiler On & Off
(half above & half below the boiler target temperature).
This item is only available if Application Mode is set to either RSET, SETP, EMS
or BAS.
OFF, DMPR, DHWR
Default: OFF
Access: ADV
AUXILIARY RELAY
Selects the operation of the auxiliary relay to be either Combustion Air Damper
(DMPR) or DHW Recirculation Pump (DHWR).
If the External C.A. Proof / Off switch is set to External C.A. Proof, this setting is
fixed at DMPR.
OFF or AUTO
Default: AUTO
Access: ADV
PRIMARY PUMP 1
Selects whether primary pump 1 is operational or not.
This item is only available if Application Mode is set to either RSET, SETP, EMS
or BAS.
OFF or AUTO
Default: OFF
Access: ADV
PRIMARY PUMP 2
Selects whether primary pump 2 is operational or not.
This item is only available if Application Mode is set to either RSET, SETP, EMS
or BAS.
12 to 180 hr, OFF
Default: 96 hr
Access: ADV
ROTATE PRIMARY PUMPS
Sets the frequency of rotation of the primary pumps.
This item is only available if Application Mode is set to either RSET, SETP, EMS
or BAS & Primary Pump 1 & Primary Pump 2 is set to AUTO.
OFF, 0:10 to 20:00 min
Default: 0:20 min
Access: ADV
PRIMARY PUMP PURGE
Time the primary pump remains on once the appropriate calls (heat, setpoint or
DHW) are removed to purge heat from the boiler plant.
This item is only available if Application Mode is set to either RSET, SETP, EMS
or BAS & Primary Pump 1 or Primary Pump 2 is set to AUTO.
0:10 to 3:00 min
Default: 0:30 min
Access: ADV
FLOW PROOF DELAY
The time allowed for the control to receive a flow proof call once the primary
pump turns on.
This item is only available if the External Flow Proof / Off switch is set to External
Flow Proof.
0:10 to 3:00 min
Default: 1:00 min
Access: ADV
CA PROOF DELAY
The time allowed for the control to receive a C.A. proof call once the C.A. damper
(Aux) relay turns on.
This item is only available if the External C.A. Proof / Off switch is set to External
C.A. Proof.