3
Control manual and oPerating instruCtions
Printed in USA • Made In USA
95-200M GAS FIRED DIRECT VENT MODULATING HOT WATER BOILER
Keep this manual near boiler
and retain for future reference.
TABLE OF CONTENTS
I - SAFETY SYMBOLS AND WARNINGS
The following defined symbols are used throughout this manual to notify the reader of
potential hazards of varying risk levels.
Indicates an imminently hazardous situation
which, if not avoided, will result in death, seri-
ous injury or substantial property damage.
DANGER
!
Indicates a potentially hazardous situation which,
if not avoided, could result in death, serious in-
jury or substantial property damage
.
WARNING
!
indicates a potential hazardous situation which,
if not avoided, may result in minor or moderate
injury. It may also be used to alert against unsafe
practices.
CAUTION
!
IMPORTANT:
read the following instructions
completely before installing!!
I - Safety Symbols and Warnings
................................................................................................... 3
II - Operating Information
................................................................................................................ 4
iii - modulating Control Features .................................................................................................... 6
iV - Boiler startup ........................................................................................................................... 6
V - Checkout Procedures and Adjustments
.................................................................................... 9
Vi - detailed sequence of operation ............................................................................................ 12
Vii- service Hints .......................................................................................................................... 13
VIII - Troubleshooting
................................................................................................................... 14
iX - user interface Quick reference............................................................................................. 20