LP-551 Rev. 3.9.16
40
makes the master boiler address 0. NOTE: The Master
Boiler MUST be addressed as 0.
e. Change Cascade Mode function 23 to 926 Boilrs. This
makes it the master boiler.
f. Exit the installer menu.
NOTE:
The temperature set point of the master must match
the follower boiler set point in order for the system to operate
properly.
3. Programming Follower Boilers:
NOTE: READ THE NOTES BELOW BEFORE
PROGRAMMING FOLLOWER BOILERS
• The boiler addressed as 1 will share its alarm output with the
master boiler.
• It is recommended but not necessary to address boilers in
the order that they are wired.
• No two boilers can have the same address.
• It is not required to use all consecutive address numbers.
a. Make sure there is no demand for heat being supplied to
the master boiler
b. Apply power to the follower boiler you are working on.
c. Enter system settings following instructions in Part 10 of
this manual
d. Set cascade address parameter 15 to 1 for the first
follower, 2 for the second follower, etc. depending on which
boiler you are programming based on the above notes.
e. Change “CASCADE MODE” parameter to “926 BOILRS”.
This makes the boiler a follower boiler and enables all data
to be transferred between boilers as needed for the system
to function to full capability.
f. Exit the installer menu.
NOTE:
The temperature set point of the follower must match
the master boiler set point in order for the system to operate
properly.
Part 9 - Start-Up Procedure
FOR YOUR OWN SAFETY READ BEFORE OPERATING
1. This boiler does not have a pilot. It is equipped with an
ignition device which automatically lights the burner. Do not
try to light the burner by hand.
2. BEFORE OPERATING: Smell all around the boiler area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
3. WHAT TO DO IF YOU SMELL GAS
•
Do not try to light any boiler.
•
Do not touch any electric switch, do not use any phone
in your building.
•
Immediately call your gas supplier from a neighbor’s
phone. Follow the gas suppliers’ instructions.
•
If you cannot reach your gas supplier, call the fire
department.
•
Turn off the gas shutoff valve (located outside the
boiler) so that the handle is crosswise to the gas pipe.
If the handle will not turn by hand, don’t try to force
or repair it, call a qualified service technician. Force or
attempted repair may result in a fire or explosion.
4. Do not use this boiler if any part has been under water.
Immediately call a qualified service technician to inspect the
boiler and to replace any part of the control system and any
gas control that has been damaged.
5. The boiler shall be installed so the gas ignition system
components are protected from water (dripping, spraying,
rain, etc.) during boiler operation and service (circulator
replacement, condensate trap, control replacement, etc.)
Failure to follow these instructions could result in property
damage, serious personal injury, or death.
A. Control Overview
The control is one of the primary safety devices of the boiler.
It monitors the safety sensors of the boiler to assure safe and
efficient operation.
The control has many features associated with system design.
This section addresses programming features, including
Boiler Settings / System Settings / Maintenance Settings and
System Diagnostics, to help in customizing your control. It
is important to fully understand control capabilities before
customization, as its factory defaults may already fit your
system design and not require any adjustment at all.
If you discover any evidence of a gas leak, shut down the
boiler at once. Find the leak source with a bubble test and
repair immediately. Do not start the boiler again until the
leak is repaired. Failure to comply could result in substantial
property damage, severe personal injury, or death.
B. Navigation of the Display
The display includes a two line backlit LCD readout to provide
informative messages about the operation of the boiler. Many
operating parameters can be viewed and adjusted by using
the six buttons on the display. The function of each button is
described below.
RESET
– The RESET button has two functions.
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Страница 33: ...LP 551 Rev 3 9 16 33 Figure 24 Cascade Master and FollowerWiring ...
Страница 34: ...LP 551 Rev 3 9 16 34 Figure 25 Internal Connection Diagram ...
Страница 57: ...LP 551 Rev 3 9 16 57 Figure 30 Combustion System Replacement Parts 220kBTU Model ...
Страница 58: ...LP 551 Rev 3 9 16 58 Figure 31 Combustion System Replacement Parts 299 399kBTU Models ...
Страница 59: ...LP 551 Rev 3 9 16 59 Figure 32 Replacement Parts All Models ...
Страница 67: ...LP 551 Rev 3 9 16 67 Maintenance Notes ...
