Specifications

53
LP- 276 REV. 9.4.14
d. Verify that parameter 15 is set to 0. This makes the master boiler address 0. NOTE: The Master Boiler MUST be addressed
as 0.
e. Change parameter 23 from 0 to 1.
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 11 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. Set parameter 23 to 1.
f. Exit system 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 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.
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 gas shutoff valve (located outside of 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. OPERATING INSTRUCTIONS
Remove boiler cover. If you smell gas, STOP. Follow listed safety instructions. If you do not smell gas, follow the next steps.
1. Turn on all electrical power to the boiler.
2. If desired, adjust the temperature set point of the boiler. The factory default setting is 119
o
F. If changes are necessary, follow
“Adjusting the Set Point” in this section.
3. On the initial start-up of this boiler, you may note a lock-out code of F01. This is a low gas pressure switch lock-out from the factory-
installed low inlet gas pressure switch (located on the left in the 500 and on the right in the 850). You will also see a yellow LED
illuminated under the cover of the inlet gas pressure switch. Once the gas is turned on, reset the gas pressure switch by FIRMLY