York LX series, Installation Manual

Page: 10 / 50

10
1/2'' Pitch
Drain
1.5 in.
1.5 in. PVC tube stub
PVC coupling
Vent (if needed)
PVC tube stub
1/8 in. per foot
NOTE: Check dimensional data for actual PVC sizes.
Figure 6: Unit Pitch for Drain
Water Quality Guidelines
Figure 5: Horizontal Drain Connection Low Water Coil Limit
Set the freeze sensing switch SW2-1 on the Aurora Base Control
(ABC) printed circuit board for applications using a closed loop
antifreeze solution to “LOOP” (15°F). On applications using an
open loop/ground water system (or closed loop no antifreeze), set
this dip switch to “WELL” (30°F), the factory default setting. (Refer
to the DIP Switch Settings table in the Aurora Control section.)
Condensate Drain
On vertical units, the internal condensate drain assembly consists
of a drain tube which is connected to the drain pan, a 3/4-inch PVC
female adapter and a flexible connecting hose. The female adapter
may exit either the front or the side of the cabinet. The adapter
should be glued to the field-installed PVC condensate piping.
On vertical units, a condensate hose is inside all cabinets as a
trapping loop; therefore, an external trap is not necessary.
On horizontal units, a PVC stub is provided for condensate drain
piping connection. An external trap is required (see below). If a
vent is necessary, an open stand pipe may be applied to a tee in
the field-installed condensate piping.
General Installation Information cont.
Material Copper 90/10 Cupro-Nickel 316 Stainless Steel
pH Acidity/Alkalinity 7- 9 7 - 9 7 - 9
Scaling
Calcium and Magnesium
Carbonate
(Total Hardness)
less than 350 ppm
(Total Hardness)
less than 350 ppm
(Total Hardness)
less than 350 ppm
Hydrogen Sulfide
Less than .5 ppm (rotten egg smell
appears at 0.5 PPM)
10 - 50 ppm Less than 1 ppm
Sulfates Less than 125 ppm Less than 125 ppm Less than 200 ppm
Chlorine Less than .5 ppm Less than .5 ppm Less than .5 ppm
Chlorides Less than 20 ppm Less than 125 ppm Less than 300 ppm
Carbon Dioxide Less than 50 ppm 10 - 50 ppm 10- 50 ppm
Ammonia Less than 2 ppm Less than 2 ppm Less than 20 ppm
Corrosion Ammonia Chloride Less than .5 ppm Less than .5 ppm Less than .5 ppm
Ammonia Nitrate Less than .5 ppm Less than .5 ppm Less than .5 ppm
Ammonia Hydroxide Less than .5 ppm Less than .5 ppm Less than .5 ppm
Ammonia Sulfate Less than .5 ppm Less than .5 ppm Less than .5 ppm
Total Dissolved Solids (TDS) Less than 1000 ppm 1000-1500 ppm 1000-1500 ppm
LSI Index
+
0.5 to
-
.05
+
0.5 to
-
.05
+
0.5 to
-
.05
Iron
Fouling
Iron, Fe²+ (Ferrous)
Bacterial Iron Potential
< .2ppm < .2 ppm < .2 ppm
(Biological
Growth)
Iron Oxide
Less than 1 ppm. Above this level
deposition will occur.
Less than 1 ppm. Above this level
deposition will occur.
Less than 1 ppm. Above this level
deposition will occur.
Erosion Suspended Solids
Less than 10 ppm and filtered
for max of 600 micron size
Less than 10 ppm and filtered
for max of 600 micron size
Less than 10 ppm and filtered
for max of 600 micron size
Threshold Velocity
(Fresh Water)
< 6 ft/sec < 6 ft/sec <6 ft/sec
NOTE: Grains = PPM divided by 17 • mg/l is equivalent to PPM 7/17/14
LX SERIES INSTALLATION MANUAL