Hydronic Section - York YAWS018 - 075 Installation Manual

Hydronic Section cont.
If using a Geothermal Storage tank there will be two red
wires exiting out of the top of the tank. These red wries
extend internally down to the thermistor/tank thermostat
section of the tank. Remove the bottom tank cover to expose
the red wires as well as the yellow tank thermistor wires.
HydroZone
If using HydroZone control, connect the two red wires to
the two yellow wires using wire nuts. Next, connect the two
red wires from the top of the Geothermal Storage tank to
"TS" and "GND" on the HydroZone. The "OAT" and "GND"
terminals on the HydroZone are used for an outdoor air
sensor.
HydroStat
If using HydroStat control, connect the two red wires to the
yellow wires using wire nuts. Next, connect the two red wires
from the top of the Geothermal Storage tank to "TS" and
"GND" on the HydroStat. The "OAT" and "GND" terminals
on the HydroStat are used to connect the controller to the
ELWT (Entering Load Water Temperature) well point sensor.
This sensor is located on the load side entering water line
inside the unit.
For other field installed controllers, these two red wires
will need wired to the appropriate sensor input terminals.
30 psi
RELIEF VALVE
Back Flow Preventer /
Pressure Relief Valve
Dielectric
Unions
Dielectric
Unions
NOTES:
* A 30 psi pressure relief valve (Part No: SRV30) should be used in
hydronic applications.
** Vent valve or P/T port at highest point in return line prior to ball valve.
Pressure
Gauge
Air
Vent
Expansion
Tank
GEO
STORAGE
TANK
Dip Tube
1-1/2 in.
FPT
Ball Valve
AFFINITY SINGLE STAGE HYDRONIC INSTALLATION MANUAL
Another option for connection is to connect the thermostat
on the Geothermal Storage tank directly to "R" and "Y1" on
the ABC board.
Adequate rate of flow (GPM) is very important to system
performance and long term reliability. Follow the guidelines
for recommended flow in the recommendations table.
Geothermal Storage Tank Thermostat and Thermistor
Combination
Unit
Thermistor Wires Connected to TS and GND on
HydroZone Controller.
LOAD PUMP
Air
Separator
PUMP
FROM TO
HWG HWG
Source OUT
P/T Ports
Source IN
Ball Valve
13
Water-
to-Water
HYDRONIC
LOAD
Vent Valve/
P/T Port**
HOT COLD
(Piped in
series to
an electric
water heater)
DOMESTIC
P/T Ports