Install Instructions

SDT/SET Installation & Operation Manual
28
9 High Output Piping
BACKFLOW
PREVENTER
PRESSURE
REDUCING
VALVE
PRESSURE
GAUGE
MAKE UP WATER
SYSTEM
SUPPLY
SENSOR
AIR
SEPARATOR
TO
SYSTEM
FROM
SYSTEM
HOT
WATER
OUT
NOT TO EXCEED 4 PIPE DIA. OR
A MAXIMUM OF 12” APART
Y-STRAINER
(RECOMMENDED)
BOILER
CIRCULATOR
BOILER BACKUP
HEAT EXCHANGER
(SDT MODELS ONLY)
ANTI-SCALD
MIXING VALVE
COLD
WATER
IN
TEMPERATURE/
PRESSURE
RELIEF VALVE
BOILER
TANK SENSOR/
AQUASTAT
SOLAR SENSOR
RECIRCULATION
CHECK VALVE
DRAIN
(FIELD SUPPLY)
SQUIRE
SOLAR
HEAT EXCHANGER
KNIGHT
BOILER
PRESSURE
RELIEF VALVE
DRAIN
TEMPERATURE/
PRESSURE
GAUGE
UNION
(TYPICAL)
DOMESTIC
HOT WATER
CIRCULATOR
DRAIN POINT
(TYPICAL)
EXPANSION
TANK
SYSTEM
CIRCULATOR
BALL VALVE
(TYPICAL)
DIRT SEPARATOR
(RECOMMENDED)
DIR #2000570753_000
Figure 9-2 Indirect Boiler with Parallel Piping
Please note that these illustrations are meant to show system piping concept only, the installer is responsible for
all equipment and detailing required by local codes.
NOTICE
Table 9D SDT Parallel Friction Loss
Table 9C
Parallel Configuration
Model
Boiler
Flow
GPM
Boiler
Loop
Temperature
Continuous
Draw
GAL/HR*
First Hour
Rating
GAL*
Max Input
BTU/HR
SDT065
20 180° F 338 396 253,399
SDT080
20 180° F 344 414 257,897
SDT119
20 180° F 466 567 349,360
0.00
10.00
20.00
30.00
40.00
50.00
20 25 30 35 40 45 50 55 60 65
FT/HD
GPM
FRICTION LOSS SDT PARALLEL
119
065 & 080
* Tank temperature 140°F.
Note: This chart indicates total pressure drop for both coils piped in parallel.