Installation manual

PART 9. START-UP PREPARATION (CONTINUED)
5. Change parameter 23 from 0 to 1. This
makes it the master boiler.
6. 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. 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 ad-
dress
• It is not required to use all consecutive
address numbers. Example: In a 2 boil-
er system with an indirect connected to
the follower the follower address would
be 2 (address 1 not used)
1. Make sure there is no demand for heat
being supplied to the master boiler
2. Apply power to the follower boiler you
are working on
3. Enter the installer Menu following
instructions in part 11 of this manual
4. Set parameter 15 to 1 for the first
follower, 2 for the second follower, etc.
depending on which boiler you are
programming.
5. Verify that parameter 23 is set to 1. This
makes the boiler be a follower.
6. Exit the installer menu
NOTE: The temperature set point of the follow-
er must match the master boiler set point in
order for the system to operate properly.
GAS-FIRED HOT WATER SUPPLY BOILER Boiler Manual
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