50
SHUTDOWN
50
APPENDIX
APPENDIX
ARRAY AR 1000 / AR 1500 / AR 2000 Multiple Units Installation
Detail A
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).
EXPANSION
TANK
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
GAS SUPPLY
A
MANDATORY
BOILER
STRAINER
DIRTY TRAP
10'
C
B
MAINTAIN A
RECOMMENDED 8"
PRESSURE (MINIMUN
3,5") AT MAXIMUM
BTU/HR INPUT
Spiriotherm
Air Eliminator
SUPPLY
SENSOR
(OPTIONAL)
SYSTEM
CIRCULATOR
SECONDARY
SYSTEM
SUPPLY
SECONDARY
SYSTEM
RETURN
MAKE-UP
WATER
BACKFLOW
PREVENTER
PRESSURE
REDUCING
VALVE
PRESSURE
GAUGE
RELIEF VALVES
DRAIN PIPE
CONDENSATE
DRAIN PIPE
SUPPLY
RETURN
FLUE
COMBUSTION AIR
GAS
PRESSURE
REGULATOR
MANUAL
SHUTOFF
VALVE
Detail B
Detail C
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