Hot Water Generator Connections; Typical Buffer Tank Installation - York T2GY Installer's Manual

Hot Water Generator Connections

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 unit is not supplied
with an internal circulator. A DPK5 kit will need to be
purchased to connect to the hot water generator. The DPK5

Typical Buffer Tank Installation

Unit with Hydronic Storage Tank and Domestic
Water Heater Tank
HOT
FPT
Standard 50 gal. water heater
for hot water generator
Hydronic Storage Tank Recommendations
Copper I.D. Pipe Size
Unit Model
038
049
064
072
Back Flow Preventer /
Pressure Reducing Valve
COLD
P/T Ports
Water-To-Water Geothermal
Combination Unit
Heat Pump
Flow Rates (GPM)
(in)
1.25 9
1.25 12
1.25 15
1.50 18
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
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).
30 PSI
Pressure
RELIEF VALVE
Gauge
Expansion
Tank
STORAGE
TANK
FPT
Maximum Feet of
Pipe One Way
30'
30'
30'
30'
11
T2GY INSTALLER'S GUIDE
® pumps are used) to allow trapped air
Air
Vent
LOAD PUMP
Air
Separator
Ball Valve
Dielectric
Unions
*NOTE: A 30 PSI pressure relief valve (Part No: SRV30)
should be used in hydronic applications.
Dielectric
Unions
80 or 120 gal. Geothermal Storage Tank
for hydronic load
Total Number of
Elbows
10
10
10
10
HYDRONIC
LOAD
Recommended
Storage Tank Size
80 U.S. Gals
80 U.S. Gals
120 U.S. Gals
120 U.S. Gals