Specifications

Page 20 of 76 SmartSource 2-Stage Water Source Heat Pumps Catalog 1114-1
Accessories
Hoses, Hose Kits and Shutoff Ball Valves
for SmartSource Water Source Heat
Pumps
Daikin McQuay sells a variety of exible supply, return and
condensate hoses and hose assemblies for connecting its
water source heat pumps to a building's hard piping system.
Both standard and re-rated hoses are available.
Figure8:Flexible,steelbraidedsupplyandreturn
hoses
Supply and return hoses have a swivel tting at one end to
facilitate removal of the unit for replacement or service.
Standard supply and return re-rated hoses have either
a thermoplastic rubber or synthetic polymer core with a
braided covering of stainless steel. Fittings are either plated
steel or brass.
Table7:Availablefireratedsupplyandreturnhoses
Description
Connection
Size (O.D.)
Length
Supply and
Return Hoses
1/2"
24"
36"
3/4"
24"
36"
1"
24"
36"
Shutoff Ball Valves with Memory Stop
Constructed of brass and rated at 400 psig (2758 kPa)
maximum working pressure. Valves have a built-in adjust-
able memory stop to eliminate rebalancing. Valves have
FPT connections on both ends for connection to the water
hose and to the eld piping.
Figure9:Shutoffballvalvewithmemorystop
2 & 3-Way Motorized Water Valves
2-way valves are used for variable pumping applications
when more than one unit is installed on a common loop.
These valves are also used to conserve water when used for
ground water applications.
3-way valves are used for constant ow applications or
installed at the end of a variable ow branch piping run to
maintain minimum ow conditions.
Figure10:2-wayand3-waymotorizedwatervalves
Table8:Availablemotorizedvalves
Type Size Connection
2-Way
Motorized
1/2" Sweat
3/4" Sweat
1" Sweat
1/2" NPT
3/4" NPT
1" NPT
Waterside Economizer Valves
3-Way
Motorized
1/2" Sweat
3/4" Sweat
1" Sweat
Supply and Return Hose Kits
Figure11:Supplyandreturnhoses
Supply Hose - Combination Ball Valve & Strainer
The supply valve body is a combination Y-strainer full port
shut-off valve and union for use in HVAC systems. Strain-
ers are furnished with a 20 mesh stainless steel screen,
hose end drain (blow down) valve for purging, one pres-
sure/temperature port for commissioning, and one plugged
bypass port. Three additional 1/4ʺ taps are plugged and
available for accessories when specied. A variety of pipe
connections are available on both the xed and union ends.
Standard end connections are female pipe thread.