49
SHUTDOWN
49
APPENDIX
APPENDIX
APPENDIX K - BOILER INSTALLATION (EXAMPLE DRAWINGS)
ARRAY AR 1000 / AR 1500 / AR 2000 Single Unit Installation
SUPPLY SENSOR
(OPTIONAL)
EXPANSION TANK
SECONDARY
SYSTEM
RETURN
DIRTY TRAP
MANUAL
SHUTOFF
VALVE
GAS PRESSURE
REGULATOR
MAINTAIN A
RECOMMENDED 8"
PRESSURE (MINIMUN
3,5") AT MAXIMUM
BTU/HR INPUT
GAS
SUPPLY
CONDENSATE
DRAIN PIPE
RELIEF VALVES
DRAIN PIPE
SUPPLY
RETURN
COMBUSTION AIR
FLUE
10'
MANDATORY
BOILER
STRAINER
COMMON PIPE DIAMETER MUST BE
SIZED FOR LESS THAN 4.0 ft/sec
COMMON PIPE LENGHT BETWEEN THE
CLOSE TEES MUST BE 3 TO 5 TIMES ITS
DIAMETER
SYSTEM
CIRCULATOR
AIR ELIMINATOR
PRESSURE
GAUGE
PRESSURE
REDUCING
VALVE
SYSTEM
SUPPLY
BACKFLOW
P
R
NOTES:
1. THIS DRAWING IS MEANT TO DEMONSTRATE SYSTEM PIPING CONCEPT ONLY.
2. INSTALLATIONS MUST COMPLY WITH ALL LOCAL CODES.
3. INSTALL A MINIMUM OF 12 DIAMETERS OF STRAIGHT PIPE UPSTREAM OF ALL CIRCULATORS.
4. INSTALL A MINIMUM OF 6 DIAMETERS OF OF STRAIGHT PIPE UP AND DOWNSTREAM OF ALL CLOSELY SPACED TEES.
5. PIPING SHOWN IS PRIMARY/SECONDARY.
6. RECOMMENDED: GAS REGULATOR (AND IS REQUIRED WHEN SUPPLY PRESSURE IS GREATER THAN 20" WC).
7. MANDATORY: BOILER STRAINER (20 MESH OR FINER).
To Next Page
Loading...
