10
SYNERGY3D INSTALLATION MANUAL
WaterFurnace
Synergy3D
GEO
STORAGE
TANK
LOAD PUMP
HYDRONIC
LOAD
Dielectric
Unions
80 or 120 gal. Geothermal Storage Tank
for hydronic load
Dielectric
Unions
1-1/2˝
FPT
Expansion
Tank
Air
Vent
Pressure
Gauge
30 PSI
RELIEF VALVE
Air
Separator
P/T Ports
80 gal. water heater tank
for hot water generation
Back Flow Preventer /
Pressure Reducing Valve
*NOTE: A 30 PSI pressure relief valve (Part No: SRV30)
should be used in hydronic applications.
Ball Valve
COLD
3/4˝ Domestic
HOT
3/4˝ Domestic
1-1/2˝
FPT
1˝ Connections
DPK5
Typical Buffer Tank Installation
Synergy3D with Hydronic Storage Tank and
Domestic Water Heater Tank
To maximize the benefits of the hot water generator a
minimum 50-gallon water heater is recommended. For
higher demand applications, use an 80-gallon water heater
as shown below or two 50-gallon water heaters connected
in a series. Electric water heaters are recommended. Make
sure all local electrical and plumbing codes are met for
installing a hot water generator. The Synergy3D is not
supplied with an internal circulator. A DPK5 kit will need
to be purchased to connect to the hot water generator.
Unit Model
Copper I.D. Pipe Size
(in)
Flow Rates (GPM)
Maximum Feet of
Pipe One Way
Total Number of
elbows
Recommended
Storage Tank Size
SDV038
1.25
9
30’
10
80 U.S. Gals
SDV049
1.25
12
30’
10
80 U.S. Gals
SDV064
1.25
15
30’
10
120 U.S. Gals
SDV072
1.50
18
30’
10
120 U.S. Gals
Synergy3D Hydronic Storage Tank Recommendations
Hot Water Generator Connections
The DPK5 kit is supplied with installation instructions,
circulator, tank adaptor and temperature limit switch.
Be sure to burp the pump. Open the screw 2 turns only
in the end of the pump motor (if Grundfos
®
pumps are
used) to allow trapped air to be discharged and to ensure
the motor housing has been flooded. A water softener is
recommended with hard water (greater than 10 grains or
170 ppm total hardness).
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Summary of Contents for Synergy3D
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