© 2010 D 265 - 07/10
26 of 36
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.
3
2
4
1
5
Com
-
Boil
Sup
Boil
Ret
Out
+
UnO
Sw
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 procedure for modulating output
Mod
2
terminals (8 and 9) and
Mod
3
terminals (10 and 11).
mA
7
6
Mod 1 mA
-
+
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.
Cleaning The Control
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).
DIP Switches
Boiler Control 265
Menu
Item
Boiler Demand
DHW / Setpoint Demand
WWSD
Modulation
Boiler Output (x10,000 BTU/hr)
External Input Signal
Offset / Priority Override
Test
off
not testing
red
testing
red
testing paused
For maximum
heat, press &
hold Test for 3
seconds.
Made in Canada by
tekmar Control Systems Ltd.
Power
115 V ±10% 50/60 Hz 600 VA
Relays
230 V (ac) 5 A 1/3 hp, pilot duty 240 VA
Demands
20 to 260 V (ac) 2 VA
Stand Alone
Advanced
External Input
Off
CA.
Off
Alarm
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
rol 265
Boiler Co
Menu
Item
Boiler Demand
DHW / Setpoint Demand
WWSD
Modulation
Boiler Output (x10,000 BTU/hr)
External Input Signal
Offset / Priority Override
ff
not testing
red
testing
red
testing paused
For maximum
heat, press &
hold Test for 3
Made in Canada by
tekmar Control Systems Ltd.
yy
Power 115 V ±10% 50/60 Hz 600 VA
Relays
230 V (ac) 5 A 1/3 hp, pilot duty 240 VA
Demands
20 to 260 V (ac) 2 VA
xed Lead
t On / Last Off
On / First Off
Rotate
)
off
re
xe
t O
On
Ro
Stand Alone
Advanced
External Input
Off
CA.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
