Dip Switch Settings - Tekmar Boiler Control 265 Data Brochure

Connecting the Control
Make sure all power to the devices and terminal blocks is off, and remove any remaining
jumpers from the terminals.
Reconnect the terminal blocks to the control by carefully aligning them with their
respective headers on the control, and then pushing the terminal blocks into the headers.
The terminal blocks should snap firmly into place.
Install the supplied safety dividers between the unpowered sensor inputs and the
powered or 115 V (ac) wiring chambers.
Apply power to the control. The operation of the control on power up is described in the
Sequence of Operation section of the brochure.
Test the Modulating Outputs
Connect an ammeter to the modulating output Mod 1 terminals (6 and 7)
and observe the current reading during operation or during the Test
Sequence in the Test the Control section. For example, when using
a 4 - 20 mA output, the initial percentage output is zero and the
meter should read 4 mA. As the Boiler 1 Modulation increases in the
VIEW menu, the meter reading should increase until 100% Boiler 1
Modulation is reached at which point the meter should read 20 mA.
When the 4 - 20 mA modulation decreases, the meter should start at
20 mA and eventually reach 4 mA when the display shows 0% Boiler 1
Modulation.
Repeat the same
terminals (8 and 9) and Mod 3 terminals (10 and 11).
Cleaning The Control
The control's exterior can be cleaned using a damp cloth. Moisten the cloth with water and wring out prior to wiping the control. Do
not use solvents or cleaning solutions.

Dip Switch Settings

GENERAL
The DIP switch settings on the control are very important and should
be set to the appropriate settings prior to making any adjustments
to the control through the User Interface. The DIP switch settings
change the items that are available to be viewed and / or adjusted in
the User Interface.
If a DIP switch is changed while the control is powered up, the
control responds to the change in setting by returning the display to
the VIEW menu.
Advanced / Installer
The Advanced / Installer DIP switch selects the access level of the
control. In the Installer access level, a limited number of items may be
viewed and / or adjusted. In the Advanced access level, all items may
be viewed and / or adjusted.
External Input / Stand Alone
The External Input / Stand Alone DIP switch selects whether a tekmar
Outdoor Sensor 070 or an external 0 - 10 V (dc) input signal is to be
connected to the Com – and the Out + terminals (1 and 4).
© 2010 D 265 - 07/10
procedure for modulating output Mod 2
External Input
Advanced
Installer
Stand Alone
External Input
Advanced
Installer
Stand Alone
26 of 36
DIP Switches
Alarm Parallel
Off
Soft Stop Rotate Rotate Ro
External Input
Advanced Fixed Lead xe xed Lead
Boiler Demand Boiler Demand
First On / Last Off t O t On / Last Off
DHW / Setpoint Demand DHW / Setpoint Demand
First On / First Off On / First Off On
Installer
WWSD WWSD Stand Alone CA.
Off
Exercise
Sequential
Modulation Modulation
Test
Boiler Output (x10,000 BTU/hr) Boiler Output (x10,000 BTU/hr) )
External Input Signal External Input Signal
Offset / Priority Override Offset / Priority Override
Menu Menu Item Item
Made in Canada by Made in Canada by y y
tekmar Control Systems Ltd. tekmar Control Systems Ltd.
Power Power 115 V ±10% 50/60 Hz 600 VA 115 V ±10% 50/60 Hz 600 VA
Relays Relays 230 V (ac) 5 A 1/3 hp, pilot duty 240 VA 230 V (ac) 5 A 1/3 hp, pilot duty 240 VA
Boiler Co Boiler Control 265 rol 265
Demands Demands 20 to 260 V (ac) 2 VA 20 to 260 V (ac) 2 VA
Parallel
Alert
Off
Soft Stop Rotate
Fixed Lead
First On / Last Off
First On / First Off
CA.
Off
Exercise
Sequential
Parallel
Alert
Off
Soft Stop Rotate
Fixed Lead
First On / Last Off
First On / First Off
C.A.
Off
Exercise
Sequential