Waterway SANTANNA User manual

SANTANNA AIR BLOWER INSTRUCTIONS
When installing and using this electrical equipment, basic safety precautions should always be followed, including
the following:
1. (For all units) Install to provide drainage of compartment for electrical components.
2. (For all units)WARNING - To reduce the risk of injury, do NOT permit children to use this product unless they are
closely supervised at all times.
3. (For permanently installed units only) A green colored wire (or a wire connector marked“G”,“GR”,“Ground”,
or“Grounding”) is provided with the switch box. To reduce the shock, connect this terminal or connector to
the grounding terminal of your electric service or supply panel with a continuous green insulated copper wire
equivalent in size to the circuit conductors supplying this equipment, but no small than No. 12AWG (3.3mm²).
4. (For assemblies with air blowers) Install in accordance with Diagram 1 to keep spa or water out of electrical
equipment.
5. The unit must be installed within a suitable enclosure to restrict user access to the equipment or connections and
be of an enclosure type that will provide an ingress protection rating of IP24 or better.
BLOWER SIZING - AIR CHANNELS, AIR BARS, AIR CAPS, & AIR RINGS
Choosing the proper size of air blowers is critical for maximum performance and extended motor life.To determine
the correct blower size for a spa or hot tub, these element must be considered: 1.Water depth, 2.The number of air
holes.
WATER DEPTH
1.Total length of 2" pipe from blower to spa. For each 10 feet of 2" air line, add 1" to water depth.
2. Number of 90 degree angles used in the air line. For each 90 degree angle, add ½" to water depth.
3. Actual water depth (not total depth of spa).
For example: (refer to Diagram 1)
1. Air line is 30ft., all inclusive ....... add 3"
2. Five 90 degree turns .............. add 2 ½"
3. Actual water depth ................. add 32"
Total ............................................... 37 ½"
NUMBER OF AIR HOLES
The air holes in the spa floor and/or seat release the air perpetuated by the blower through the 2" air line.Table
2 below gives the most common air hole sizes and the corresponding number of air holes needed to release the
proper amount of air. An inadequate number of holes or holes that are too small create excessive heat buildup,
commonly called back up pressure, resulting in potential harm to the air blower.
If it is determined that the existing hole sizing
is incorrect, additional holes may be drilled or
the existing holes may be enlarged or more air
injectors added. CAUTION: Be extra careful
not to drill through the bottom of the air
channel on your spa.
BLOWER SIZING - JETS
Originally designed for air channel aeration, the air blower also has been applied to boost spa jet turbulence
However, to be effective, care must be taken in installing (jets, jet orifice size, pump sizing, length of pipe run, etc.).
No common formula for sizing has been found 100% effective.Table 3 is a general guideline, assuming an average
pipe run of 15 to 25 feet total.The“bigger is better”idea will definitely not provide a trouble-free installation.
When sized with the proper circulation pump, the spa jet draws and mixes the
proper amount of air and water, thereby eliminating the need of additional
boost. Improper jet performance is seldom corrected with the air blower.The
AmperageTest (see other side) should always be applied in this situation to
assure no costly call-backs.
IMPORTANT NOTE:To keep water from entering the blower, causing potential damage, a check valve (P/N 600-
8140) and a Hartford loop (refer to Diagram 1) must be used when plumbing blower to jets.
IMPORTANT SAFETY INSTRUCTIONS • SAVE THESE INSTRUCTIONS • PLEASE READ AND FOLLOW ALL INSTRUCTIONS
Part No. HP Volts Amps CFM Up To
750-1011-280 1.0 110 6.5 115 35
750-1022-280 1.0 220 3.6 113 35
750-1511-280 1.5 110 7.6 120
750-1522-280 1.5 220 4.0 108
750-2011-280 2.0 110 9.0 128
750-2022-280 2.0 220 5.0 119
TABLE 1
Air Hole Size Decimal Equivalent No. of Air Holes Total Orice Diameter
1/8" .0123 120 1.370
5/32" .0192 73 1.336
3/16" .0276 50 1.325
¼" .0491 30 1.369
No. of Jets Blower Size
4-7 1 HP
8-13 1 ½ HP
14 + 2 HP
TABLE 2
TABLE 3
810-0037.0618
©2018 Waterway Plastics
2200 East Sturgis Road, Oxnard CA 93030 • Phone [phone] • Fax [phone]
www.waterwayplastics.com • [email protected]
Designed,
Engineered &
Manufactured
in the USA.

2
RECOMMENDATIONS
1. When possible, install two 45-degree angles to create a right angle rather than one 90-degree angle.
2. Be sure to install the loop (see installation section) a minimum of 12" to 18" above spa level.
3. Use a check valve in every system.
TYPICAL INSTALLATION OF THE BLOWER
By following the installation recommendations listed below you will be assured of optimum performance and a
long lasting installation. Blower model numbers starting at 750 offer the option of side or bottom air discharge.
They are supplied with plug for mounting. An external anti-surge valve (sold separately) can be used to prevent
potential water backflow to the blower.
When using the side discharge, screw the plug to a solid base using the (3) screw holes
provided (see Diagram 2). Apply a small amount of silicone to the vertical wall of the plug
and set the blower housing on the plug. If gluing is necessary, spot glue only.
For bottom discharge, the 2" pipe may be used as the blower support. Be sure to keep the
blower 12" to 18" above water level and use the Hartford loop system with a check valve
(see Diagram 1). Again, a bead of silicone around the pipe will hold the unit firmly in place.
ELECTRICAL HOOKUP (SEE DIAGRAM 3)
1. Check the line voltage to be sure it is correct for the air blower being used.
2. DO NOT connect 220 volt line to 110 volt unit. THIS WILL DESTROYYOUR BLOWER.
3. If switch is used, install as illustrated. If switch is not used, tie one line to one load, tie the other line (or neutral)
to the other load.
4. GROUND ALL UNITS.
5. ADDITIONAL GROUNDING NOTE: Double insulated (plastic) blowers do not need to be bonded.
6. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified
person in order to avoid a hazard.
AMPERAGE TEST FOR SPOT CHECKING INSTALLATION
To insure a properly installed and sized air blower, complete the following test. Pull the blower off the pipe, start
the unit, and read the amperage. Set blower back on the pipe, start the unit, wait for air channel to clear, and read
amperage again. A properly installed unit will not drop more than .5 amps. If the amperage is not to within the
range, refer toTroubleshooting or Sizing sections.
TROUBLESHOOTING
NO ACTION OR TOTAL MOTOR FAILURE
1. Check motor brushes for excessive wear.
2. Check wiring (i.e. voltage, amperage, etc.)
3. Check for blockage in plumbing.
4. Be sure sizing is correct.
5. Be sure check valve is installed properly.
BLOWER OVERHEATING
1. Check for blockage in plumbing.
2. Be sure sizing is correct.
3. Be sure check valve is installed properly.
WATER DAMAGE
1. Check valve may be failing.
2. Sprinklers close to air blowers causing water entry through air intake.
3. Blower installed below water level.
4. Blower installed upside down.
DIAGRAM 1 DIAGRAM 3
Grade
32"
36"
Check
Valve
Blower
32" 32"
12" - 18"
5 ft. min
25 ft. max
20"
Hartford Loop
Grade Level
30 ft. total Air Line
2" PVC Air Line
DIAGRAM 2
NEUTRAL LOAD
LINE
NEUTRAL
CHASIS SCREW
GROUND #12AWG
LOAD LOAD
LINE
LINE
GROUND
CHASIS SCREW
GROUND #12AWG
GROUND
110 VOLT
220 VOLT
810-0037.0618
©2018 Waterway Plastics

3
TYPICAL INSTALLATION SUGGESTIONS AIR BLOWER ENHANCEMENT
5 ft. min
25 ft. max
UL Listed
Check Valve
UL Listed
Check Valve
12"
Venturi Tee
1 ½" PVC Pipe
to Bubblers
Air Flow
over 26 ft.
As close to the spa as possible
Grade
Grade Level
5 ft. min.
32"
Blower
30 ft. total Air Line
2” PVC Air Line
4"
3"
12" - 18"
Hartford Loop
20"
Air Flow
Water Flow
2" PVC Pipe
1 ½" PVC Pipe
to Bubblers
2" PVC Pipe
Water Flow
Venturi Tee
12" UL Listed
Check Valve
UL Listed
Check Valve
2" PVC
Pipe
Air Flow
2" PVC Pipe
UL Listed
Check Valve 4"
How an Air Blower enhances the performance of your spa:
JET ACTION
ONLY
TOTAL AIR
ACTION
1. TYPICAL INSTALLATION
(5 ft. - 25 ft. from spa)
2. LONG RUN INSTALLATION
(over 25 ft. from spa)
3. BLOWER LAYOUT DIMENSIONS
810-0037.0618
©2018 Waterway Plastics
WARRANTY
For product registration visit: www.waterwayplastics.com.
For Warranty questions or claims please contact point of purchase.

4
INSTALLING THE GUNITE AIR INJECTOR CAP
0.125" diameter holes
(29 qty.)
ts into 1 ½"
schedule 40 pipe
GUNITE AIR INJECTOR CAP
672-2000
GUNITE AIR INJECTOR CAP DIMENSIONS
1 ½" pipe, capped, stubbed Fits in 1 ½" Schedule 40 PVC pipe.
Pipe cuts flush with finish coat,
ready for gunite air injector.
Optional Seat
Installation
Gunite Spa
Typical “Four in the Floor”
Installation
1 ½" PVC Reduced from
2" PVC Run in from Flower
1.20"
2.00"
diameter
1.00"
.20"
A B
810-0037.0618
©2018 Waterway Plastics