Lochinvar SQUIRE SDT/SET065 - 119 - Manual (Page 27)

SDT/SET Installation & Operation Manual
27
9
High Output Piping
(continued)
PRESSURE
REDUCING VALVE
PRESSURE
GAUGE
BACKFLOW
PREVENTER
MAKE UP WATER SYSTEM
SUPPLY
SENSOR AIR
SEPARATOR
TO
SYSTEM
BALL VALVE
(TYPICAL)
SYSTEM
CIRCULATOR
EXPANSION
TANK
DRAIN POINT
(TYPICAL)
FROM
SYSTEM
COLD
WATER
IN
ANTI-SCALD
MIXING VALVE
HOT
WATER
OUT
TEMPERATURE/
PRESSURE
RELIEF VALVE
BOILER
TANK SENSOR/
AQUASTAT
SOLAR SENSOR
NOT TO EXCEED 4 PIPE DIA. OR
A MAXIMUM OF 12 “ APART
Y-STRAINER
(RECOMMENDED)
DOMESTIC
HOT WATER
CIRCULATOR
BOILER
CIRCULATOR
BOILER BACKUP
HEAT EXCHANGER
(SDT MODELS ONLY)
UNION
(TYPICAL)
TEMPERATURE/
PRESSURE
GAUGE DRAIN
PRESSURE
RELIEF VALVE
KNIGHT
BOILER SQUIRE SOLAR
HEAT EXCHANGER DRAIN
(FIELD SUPPLY)
CHECK VALVE
RECIRCULATION
PUMP
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 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 338 396 269,840
SDT080 20 180° F 344 414 269,840
SDT119 20 180° F 466 567 336,198
Table 9D SDT Parallel Friction Loss
FRICTION LOSS SDT PARALLE
6
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
6
FT/HD
FLOW
FRICTION LOSS SDT PARALLEEL
119
065 & 080
065 & 080 119
60 70 80
065 & 080
119
EL
10 0 20 30 40 50 60 70 80