INSTALLATION AND OPERATION INSTRUCTIONS
2-10
SL 20-115 MODULATING GAS BOILER
From the main installer setup Menu, select
“Heat Load Configuration”
, then
“Configure Load (use the load number tagged as Space Heating)”
, and drop
down to “summer shutdown”. Press enter to select, then use the keys to move
the threshold temperature to the desired level, and press the centre key again to
record. the controller must receive a valid signal from the
tekmar 070
outdoor
sensor, supplied with the boiler, to operate.
2.6.8 Remote / Subordinate Mode
installers have the option of placing the control of the boiler under an external
electronic controller (such as a
tekmarNET
©
control). Connections are provided
to receive a 0-10vdC or 4-20 ma signal for throttle management. the default
configuration is 0-10V; to switch over to 4-20mA, remove the electrical box
corner cover to provide access to the slotted clearance hole on the lower right
corner of the control module; use needle-nose pliers to move the plastic jumper
tab from the right two terminals to the left two terminals accessible through
the slotted clearance hole. Where the iBC controller senses a signal on the
remote connections, it automatically subordinates its internal throttle logic, and
adopts the external signal. in such slave mode, temperature management is
also surrendered to the external controller’s sensors. the installer only enters
Maximum Boiler supply and on/off differential temperatures; the boiler will
respond to these as high limit switches.
From the main installer setup Menu, select
“Define Load (with desired #)”
, then
locate and enter
“External Control”
. Next, configure the load with the Maximum
and differential temperature values.
set uP & load deFinition
after the boiler is powered up, the installer can use the keypad and display to
characterize the application, as follows:
1.
in the
Standby
mode, start by pressing any key to call up the
Main Menu.
2.
using the directional keys, move the cursor to
Installer Setup,
then depress
the centre
(Enter)
key.
See Section 2.4.5. Passwords
if these are in use or
desired.
3.
select
Date & Time
(and enter), then move the cursor about to adjust time
(on a 24:00 hour basis), date and invoke daylight savings if appropriate. use
the upper key to increase a value (e.g. date, time, temperature), the bottom
key to reduce. note that it is often possible to move in steps of 10 or 100 by
moving the cursor right or left once a field has been selected for adjustment.
Hit the
Enter
key to record the desired / amended information after each
value has been selected.
4.
use the left-most key to step back to the
Installer Setup
screen, and select
Heat Load Configuration
for input of the load characteristics.
2.7
