Geostar Arbor Base Series, Installation Manual

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15
ARBOR BASE SERIES INSTALLATION MANUAL
Typical open loop piping is shown below. Always maintain water
pressure in the heat exchanger by placing water control valves at
the outlet of the unit to prevent mineral precipitation. Use a closed,
bladder-type expansion tank to minimize mineral formation due to
air exposure. Insure proper water flow through the unit by checking
pressure drop across the heat exchanger and comparing it to the
figures in unit capacity data tables in the specification catalog.
1.5-2 gpm of flow per ton of cooling capacity is recommended in
open loop applications. Due to only minor differences in flow rate
from low to high, only one solenoid valve should be used. The valve
should be sized for full flow.
Open System - Groundwater Application
Flexible
Duct Collar
Vibration
Absorbing Pad
P/T Plugs
Drain
Low Voltage
to Thermostat
and Valve
Unit Supply
Aux. Heat Supply
Water Out
Water In
Shut Off Valves
Boiler Drains
For HX Flushing
Disconnects
(If Applicable)
Rubber Bladder
Expansion Tank
Solenoid
Valve
Shut Off Valves
(to isolate solenoid
valve while acid flushing)
Strainer
Flow Control
Valve
(on outlet of
Solenoid Valve)
Compressor
Line Voltage
Discharge water from the unit is not contaminated in any manner
and can be disposed of in various ways, depending on local codes,
i.e. recharge well, storm sewer, drain field, adjacent stream or
pond, etc. Most local codes forbid the use of sanitary sewer for
disposal. Consult your local building and zoning departments to
assure compliance in your area.
Open Loop Ground Water Systems