Filter
Top Products
60
Installation & Operation Manual
10 Start-up
Set domestic hot water (DHW) operation
Verify DHW mode
There are two (2) modes of operation for DHW. In Normal
Mode, when a DHW demand begins, the control will start
the DHW pump, turn off the boiler pump (if running), and
modulate to bring the outlet temperature to the DHW boiler
set point. The maximum firing rate may be limited in this
mode if desired.
In Zone Mode it is assumed that the indirect DHW tank is
piped as a zone on the primary loop. When a DHW demand
begins, the control will turn on the DHW pump output, and
raise the system temperature set point to the DHW boiler set
point (if higher). The system pump and the boiler pump will
be turned on. In this mode, any low temperature zones (such
as radiant heating) may need additional controls to limit the
water temperature sent to those zones.
Set DHW target temperature
When in the DHW Mode, the control will modulate to
maintain the boiler outlet temperature or system supply
temperature to a set point. This set point is set at the factory
to 180°F. If a different set point is desired, the appropriate
parameter in the control must be changed. See the Knight
Boiler Service Manual for a detailed explanation of this
procedure.
Set maximum DHW fan speed
If the rated input of the indirect tank is less than the
maximum output of the boiler, change the maximum DHW
fan speed setting to limit the boiler output accordingly, see
the Knight Boiler Service Manual for a detailed explanation
of this procedure.
The internal clock does not adjust for
Daylight Savings Time and therefore, will
require a manual adjustment.
Configuration of the cascade
The SMART SYSTEM control has a built-in clock that it
uses for its night setback feature and for logging events. This
clock must be set when the boiler is installed, and anytime
the boiler has been powered off for more than 4 hours. Use
the following procedure to set the clock:
1. Press and hold the LEFT SELECT [MENU] key for at
least 5 seconds.
2. The display changes to read [PASSWORD],
with four (4) zeros below it.
3. Press the RIGHT SELECT [SAVE] key.
4. The display will then show a menu with the time and
date and temperature unit.
5. Press the NAVIGATION dial twice.
6. Turn the NAVIGATION dial to adjust the hours. Press
the NAVIGATION dial.
7. Turn the NAVIGATION dial to adjust the minutes. Press
the NAVIGATION dial.
Please note that the brackets ([]) denote
screen status.
NOTICE
When installed in a Cascade system, the individual controls
must be programmed for cascade operation. This is
accomplished by accessing the control parameters.
Press the [MENU] key for at least five (5) seconds. Input
the Installer code as described in the Knight Boiler Service
Manual. Once the control parameters have been accessed,
use the NAVIGATION dial to select the Control Mode
parameters. Press the NAVIGATION dial to access these
parameters.
Rotate the NAVIGATION dial to select the parameter
“Cascade Address”. Press the NAVIGATION dial to access
this parameter. Each appliance in the Cascade system must
be programmed with its own address. The boiler designated
as the Leader will have an address of 0. The remaining boilers
in the Cascade will be Members and have addresses from 1
- 7. Rotate the NAVIGATION dial to select the appropriate
address. Press the RIGHT SELECT [SAVE] key. If installing
the boilers in an existing system, the new boilers should
be programmed as the Leader and/or the higher number
addresses.
Press the RIGHT SELECT [HOME] key to upload the address
into the control. Repeat this procedure for all boilers in the
Cascade, designating the Leader control and the Member
controls.
Please note that the brackets ([]) denote
screen status.
NOTICE
Set clock
8. Turn the NAVIGATION dial to adjust the month. Press the
NAVIGATION dial.
9. Turn the NAVIGATION dial to adjust the date. Press the
NAVIGATION dial.
10. Turn the NAVIGATION dial to adjust the year. Press the
RIGHT SELECT [SAVE] key.
11. Press the RIGHT SELECT [HOME] key.
NOTICE