Acorn A171.8 Series Instruction manual

A171.8 Series
Barrier Free, Wall Mounted Water Cooler
A171108F / A171408F / A171108F-SO / A17408F-SO
TECHNICAL ASSISTANCE TOLL FREE TELEPHONE NUMBER:
1.800.591.9360
Technical Assistance Fax: [phone]
NOTES TO INSTALLER:
1. Please leave this documentation with the owner of the fixture when finished.
2. Please read this entire booklet before beginning the installation.
3. Check your installation for compliance with plumbing, electrical and other applicable codes.
LIMITED WARRANTY - UNITED STATES & CANADA
Acorn Engineering warrants Water Coolers, Drinking Fountains and remote Chillers are free from defects in
material or workmanship under normal use and service for a period of one year from date of shipment from the
factory. The compressor, condenser and refrigeration tubing is warranted for an additional four years after the
period described above. Acorn’s liability under this warranty shall be discharged solely by repair or replacement
of defective material, provided Acorn is notified in writing within the time periods described above.
This warranty does not cover installation or labor charges and does not apply to materials, which have been
damaged by other causes such as mishandling or improper care or abnormal use. The repair or replacement of
the defective materials shall constitute the sole remedy of the Buyer and the sole remedy of Acorn under this
warranty. Acorn shall not be liable under any circumstances for incidental, consequential or direct charges
caused by defects in the materials, or any delay in the repair or replacement thereof. This warranty is in lieu of
all other warranties expressed or implied. Product maintenance instructions are issued with each unit and
disregard or non-compliance with these instructions will constitute an abnormal use condition and void the
warranty. Stainless steel must be protected on jobsite during construction and must be properly maintained
after the water has been introduced into the water cooler or drinking fountain, or Acorn’s limited warranty is
void.
LIMITED EXPORT WARRANTY - One year on parts only.
COMPLIES WITH
7020-904-001 Date: 03/12/15
Test rating conditions are
compliant with ARI 1010.
Acorn Engineering Company™ assumes no
responsibility for use of void or superseded data.
© Copyright Acorn Engineering, City of Industry,
CA Member of Morris Group International.
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for most current specifications.
www.acorndrinkingfountains.com
Federal
Public Law
111-380
(No Lead)
Member of
ACORN
Water Coolers &
Drinking Fountains
15125 Proctor Ave.
City of Industry, CA
91746 U.S.A.
Phone [phone]
626-336-4561
w w w. a c o r n d r i n k i n g f o u n t a i n s . c o m
INSTALLATION, OPERATIONS
& MAINTENANCE MANUAL

IMPORTANT
This fixture is intended to dispense water that has been lowered in temperature, but otherwise remains
unchanged by the materials in the water cooler. It is common for electrical equipment to be grounded
to water lines either within a structure or away from it. Every attempt should be made to prevent this
kind of grounding from generating electrical feedback into the water cooler creating electrolysis.
Electrolysis will cause a metallic taste or cause water metal content to increase.
NOTICE
A dielectric coupling must be used to connect the water cooler to the water supply. A nonmetallic
coupler is furnished with this water cooler to meet this requirement.
ROUGHING-IN AND DIMENSIONAL DRAWING
Prior to roughing consult with local, state, and federal codes for proper mounting height.
A171408B Wall Mounted Drinking Fountain
Note: There are no mounting changes to be made for -SO models.
NOTES: Dimensions indicated ** are for ADA frontal approach installation. Adjust vertical dimension **
as required to comply with federal, state, and local codes. For Child ADA compliant parallel approach,
decrease spout height to 30” maximum above finished floor. Provide clear floor space as required.
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7020-904-001 Page 2 of 11
AIR FLOW
A. 3/8" NCT SUPPLY INLET
B. WASTE OUTLET FOR 1-1/4" P-TRAP BY OTHERS.
C. ELECTRICAL SERVICE ROUGH.
D. Ø3/8" HANGER BRACKET PUNCHING, 3 PLACES FOR ANCHORING HARDWARE BY OTHERS.
E. Ø1/4" PUNCHING, 2 PLACES FOR ANCHORING HARDWARE BY OTHERS.
GENERAL NOTES:
1. ALL DIMENSIONS ARE IN INCHES [MM].
*2. VERTICAL DIMENSIONS INDICATED **ARE FOR ADA FRONT APPROACH; ADJUST VERTICAL DIMENSIONS AS
NECESSARY TO COMPLY WITH FEDERAL, STATE, OR LOCAL CODES.
3. STOP VALVE, TRAP, & ELECTRICAL J-BOX ARE PROVIDED BY INSTALLER.
4. IMPORTANT: COOLERS MUST BE ATTACHED TO WALL WITH ANCHOR SCREWS.
11"
165
8"
37
8"
131
2"
203
4"
51
4"77
8"
D
C
B
A
71
4"
13
8"
6"
12"
TAIL
PIECE
*33"
*155
8"
E
41
4"21 4"
181
2"
Date: 03/12/15
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

PRIOR TO INSTALLATION:
Important: some options may slightly alter installation. To ensure proper installation review the manual
thoroughly and verify rough-ins before beginning work. File this manual wit the owner or maintenance
personnel upon completion of installation.
— Fixture mounting requirements: industry standard wall construction, adequate to support the fixture
and installer provided wall anchors sufficient to secure the fixture.
— Receptacle(s) must be wired to a GFCI protected circuit. Fixture must be earth grounded per NEC
(National Electric Code).
— Inspect fixture an all parts from damages and all parts are bolted on.
IMPORTANT:
1. Waste P-Trap, Water Supply Service Angle Stop Valve and 2” x 4” Electrical Plug-In Receptacle to
be supplied by others in accordance with local codes. A metallic p-trap (by others) must be used for
the drain connection.
2. Provide 4” minimum clear space on fixture sides to allow for proper ventilation through cabinet
louvers.
3. Water supply is 3/8” Outer Diameter copper tube. Waste is 1-1/4” Outer Diameter.
4. Completely flush supply lines of all foreign debris before connecting to fixture. Water cooler is
designed to not cause problems with taste, odor, color, or sediment. Optional water filter (Wf1) is
available should any of these problems arise from the water supply.
5. Do NOT solder tubes inserted into the coupler as damage to the o-ring may result.
6. All burrs must be removed from outside of cut tubes before inserting into coupler or other
components.
7. Power supply must be identical in voltage, cycle and phase to that specified on the cooler data
plate. Electrical outlet and furnished power cord with plug must be used to supply power to fixture.
Do NOT wire compressor directly to the power supply.
8. This unit must be grounded per the requirements of applicable electrical codes.
9. WARNING: Warranty is voided if installation is not made following current Acorn Engineering
installation instructions and if components are assembled to the fixture that is not approved by
Acorn Engineering.
10. Fixture operates within water pressure range of 20 to 105 psig. Acorn Engineering will not warranty
fixtures damaged when connected to supply lines with flow pressure lower than 20 psig or higher
than 105 psig. A pressure regulator must be furnished by others on supply line if inlet pressure is
greater than 105 psig.
11. Due to cold waste water, Acorn Engineering recommends that p-trap supplied by installer be
insulated to prevent excessive condensation.
12. Per UPC 609.10- All building water supply systems in which quick acting valves are installed shall
be provided with devices to absorb the hammer caused by high pressure resulting from the quick
closing of the valve. These pressure-absorbing devices shall be approved mechanical devices.
Water pressure-absorbing devices will be installed as close as possible to the quick closing valve.
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

INSTALLATION:
1. Mount hanger bracket to wall horizontally level as shown in Roughing-In and Dimensional Drawing.
Note: Adjust height of bracket if bubbler outlet height is required to vary from that shown.
WARNING: Hanger Bracket MUST be securely anchored to wall with fasteners sufficient to support
3 times weight of cooler. If wall can not provide adequate support, order and install optional fixture
support carrier.
2. Remove the bottom cover from the water cooler and set aside in a safe place. Save the screws in a
secure location for re-use in later stages of installation.
3. Hang the water cooler on the hanger bracket, ensuring the bracket tabs engage AND seat in the
slots in the back of the water cooler. Verify water cooler is level, left to right AND front to back from
bottom of unit. NOTE: The bubbler stream may be adversely affected if unit is not square and level.
Bottom of unit and louvers should be used as reference to verify unit is square and plumb.
4. Anchor water cooler to wall at other mounting points in base. Shim lower rear mounting points to
level unit if necessary.
5. Thoroughly flush the 3/8” O.D. supply line and then connect water cooler to water supply angle stop
valve (by others) with supplied 3/8” O.D. copper tube.
6. Make up 1-1/4” O.D. p-trap (by others) waste connection.
START UP:
1. Before connecting power supply and assembling bottom cover to water cooler, but after thoroughly
flushing the supply line and connecting it to the fixture, turn on building water supply and check all
connections for leak.
2. Air within the water cooler s ystem or the structure supply piping will cause an irregular bubbler
outlet stream until purged out by incoming water. Covering the bubbler with a clean cup (or similar
object) is recommended when first activating water cooler to prevent excessive splashing. Depress
the pushbutton until steady water stream is achieved.
3. If water flow requires adjustment, insert a slotted narrow blade screwdriver through the hole
centered on the pushbutton to the flow regulator. Turning clockwise will increase flow and turning
counterclockwise will decrease flow.
4. Recheck all water and drain connections with water flowing through system.
5. With power still NOT connected, carefully manually rotate cooling fan to insure proper clearance
and free fan action.
6. Plug water cooler in to electrical outlet and make sure unit begins to function.
7. Assemble bottom cover to water cooler with screws furnished.
7020-904-001 Page 4 of 11
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Date: 03/12/15
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

TROUBLE SHOOTING:
IMPORTANT: BEFORE MAKING ANY OF THE REPAIRS LISTED, MAKE SURE THE WATER
COOLER IS DISCONNECTED FROM THE ELECTRICAL SUPPLY AND THE WATER SUPPLY
VALVE IS SHUT OFF.
1. Adjustments:
a. Cartridge – The water flow can be adjusted using a slotted narrow blade screwdriver and
turning clockwise to increase flow and counterclockwise to decrease flow.
b. Cold Water Thermostat – The water temperature can be adjusted using a slotted
screwdriver and turning clockwise to make colder and counterclockwise to make warmer.
c. Bubbler Stream – Bubbler can be rotated slightly to direct the stream backwards or
forwards. Adjust the stream to minimize splashing. Splashing may occur from bubbler
stream if the unit is not level. Shim lower mounting points, if necessary, to level cooler.
2. Compressor Does Not Run
a. Check the electrical receptacle for power and correct voltage. The incoming voltage must be
within 10% of the rated voltage on the serial nameplate.
b. The cold thermostat is accessible by removing the bottom access cover. If the cold
thermostat capillary bulb loses its charge or becomes kinked it will fail in the open position
causing a disruption of power to the compressor. Unplug the water cooler and using an
ohm meter check for continuity across the two electrical terminals on the thermostat. Install a
new thermostat if there is no continuity.
c. Check for loose wires within the compressor box. The incoming power leads must be
connected to the overload and relay.
d. If all components check positive for continuity then test the wiring harness plug for
continuity to see if there is a broken wire within the wiring harness insulation.
3. Compressor Runs – Water Is Warm
a. The most common cause for a water cooler to run without producing cold water is a
loss of refrigerant. The water cooler must be taken to a certified refrigerant technician
for repairs.
b. Make sure the condenser fan motor is operative. The fan blade must turn freely to help
remove the heat of compression.
c. An incorrect refrigerant charge, restriction or defective compressor (not pumping) will
also cause the compressor to run without producing cold water. All these signs indicate
a problem within the refrigeration system and the water cooler must be checked by an
authorized service company.
4. Compressor Cycling On Overload Protector
a. A dirty condenser or a blocked fan will cause a high head pressure and frequent cycling
of the overload protector.
b. Check the incoming voltage to make sure it is within 10% of the serial nameplate rating.
c. A restriction or moisture in the system will also cause intermittent cycling. A certified
refrigeration mechanic should be contacted in this situation.
d. Change the overload or relay if defective.
5. Noisy Operation
a. Check to make sure the fan blade is rotating freely.
b. Make sure the water cooler is correctly mounted to the wall. Absence of the two lower
mounting bolts may cause excess noise and vibration.
c. Check the compressor mounting to make sure the pins and clips are not rattling. If the
compressor appears to be noisy internally, it must be replaced.
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

6. Restricted Or No Water Flow
a. Ensure water supply service stop valve is fully open.
b. Verify minimum 20 psig supply line flow pressure.
c. Check for twists or kinks in bubbler tubing.
d. Check the water inlet strainer. Sediment from the main supply can get trapped in the
screen along with installation materials such as pipe dope and flux. The screen should
be cleaned and checked on a regular basis and replace if needed.
NOTE: STRAINER SCREEN MUST BE IN PLACE FOR WATER TO FLOW.
e. The cartridge valve located in the water control assembly or bubbler can also become
clogged with foreign material. The cartridge valve can only be replaced and not
repaired.
f. Check flow adjustment. See start up note #3.
g. The water cooler may also develop a freezing condition in which the water will become
frozen inside the evaporator coil. This indicates a refrigeration problem or thermostat
failure in which case the water cooler needs to be checked by a qualified technician.
7. Water Drip Or Will Not Shut Off:
a. Open fixture. Loosen nuts holding valve bracket assembly to bottom of fixture but do not
remove. Move complete valve bracket assembly further back from the front push pad and
tighten lock in place.
8. If Light Within Sensor Does Not Flash When User is Within Range:
a. Verify transformer input and output voltages: 120VAC & 9VDC output.
b. Replace defective transformer.
c. Transformer polarity crossed. Replace transformer, sensor may be damaged and also need
replacement.
d. Sensor in “Security Mode” after 30 seconds of constant detection. Remove source of detection
and wait 30 seconds before checking.
e. Sensor is picking up a highly reflective surface. Eliminate cause of reflection and wait 30
seconds before checking.
f. Replace sensor
9. If Light Within Sensor Lens Flashes Once When User Is Within Range:
a. Repair bad connection from sensor to solenoid.
b. There is debris or scale in the solenoid assembly. Remove solenoid, pull out plunger and
spring. Clean with scale remover.
c. There is debris or scale in the center or two holes in convolution of the water diaphragm.
Remove and clean.
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

CLEANING & MAINTENANCE GUIDE:
1. Motors have lifetime lubrication and do not require scheduled maintenance.
2. Excess dirt or poor ventilation will cause the compressor overload protector to turn the compressor
off and it will cycle on and off with no cold water coming out of bubbler. Periodically clean with
vacuum cleaner, air hose or brush the condenser fins and cabinet ventilation louvers. In
environments where dirt and dust is more prevalent, clean more frequently.
3. Periodically remove access panels and clean out in-line strainer.
4. Do NOT use harsh chemicals, abrasive or petroleum based cleaners. Use of these will void the
Acorn warranty.
5. Exterior panels can be cleaned using mild household detergents or warm, soapy water. Extra care
must be used cleaning chrome plated items and mirror finished stainless steel. They can scratch
easily and should only be cleaned using a clean, soft cloth and mild soap with water or a mild glass
cleaner.
CARTRIDGE REPLACEMENT/ STRAINER MAINTENANCE
Note: Use the universal maintenance tool to perform the following:
1. Strainer plug must be removed before cartridge replacement and strainer
maintenance (no need to turn the water off at the angle stop). Some residual water will drain
during plug removal.
2. Clean strainer as needed using clean water.
3. Cartridge replacement - insert diamond end of the universal tool into push button, rotate 90 degrees
and pull firmly to remove the button. Remove cartridge retaining nut . Remove and replace cartridge.
When replacing cartridge be sure to align the inlet and outlet ports on the cartridge with the ports in
the valve body.
— NOTE: STRAINER SCREEN MUST BE IN PLACE FOR WATER TO FLOW.
2
4
3
1
5
ITEM PART NUMBER DESCRIPTION
5 7003-830-000 UNIVERSAL MAINTANANCE TOOL
4 7003-864-000 STRAINER FILTER SCREEN
3 7003-097-001 O-RING &STRAINER PLUG
2 7000-060-000 FLOW REGULATOR CARTRIDGE(05 GPMG)
1 7003-095-001 VALVE ASSEMBLY
Ÿ
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

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PUSH-IN FITTING INSTALLATION
NOTE: FITTINGS AND TUBE SHOULD BE KEPT
CLEAN, BAGGED AND UNDAMAGED PRIOR TO
INSTALLATION.
2. Pull on the fitted tubing to ensure it is secure. Tube
should not come free from the fitting. Water test the
connection assembly prior to leaving the site to ensure
there are no leaks.
DISCONNECTING THE TUBE:
To disconnect the tube from the fitting ensure that the
water line is depressurized. Push collet square towards
the push-in fitting body and hold. While holding the collet
in, pull on the PE tubing to remove from the push-in fitting.
TO CUT TUBE:
Cut to fit length of 1/4” PE tubing and remove any burrs
or sharp edges. Ensure that the outside diameter is free
from score marks. Tube ends should be square.
INSERTING THE TUBE:
1. Firmly and fully insert the tubing end into the push-in
fitting up to the tube stop located approximately ½”
deep.
COLLET
COLLET
O-RING
O-RING
TUBE STOP
COLLET
COLLET
COLLET
Date: 03/12/15
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

Universal Maintenance Tool
-Button Removal
-Cartridge Retaining Nut
-Strainer Plug
-Removal of P.E. Tubing from
Push-in Fittings
Standard A171.8 series refrigerated ADA cooler shown. All 1/4" O.D. Plastic tubing 24 must be
insulated with 25 foam insulation.
NOTE: See next page for table of part numbers corresponding to drawing above.
27
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7020-904-001 Page 9 of 11
3
2
1
23
20
4
5
7
8
24
9
10
11
12
22
15 13
17
18
24
21
19
6
14
25
25
2524
** 26
16
27"
15"
15"
27
NOTE:
** Flow Restrictor Only Available
With Low Flow Bubbler.
COOLER PARTS BREAKDOWN
NOTE: See page #11 for fixture drawing
corresponding to table of parts below.
Date: 03/12/15
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

Repairs must be made with Acorn Engineering parts only. Please order through your local representative
or distributor. The phone number to locate your local representative is 1.800.591.9360.
SENSOR OPERATED COOLER PARTS BREAKDOWN
NOTE: See page #11 for fixture drawing corresponding to table of parts below.
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7020-904-001 Page 10 of 11
3
2
1
23
20
4
5
7
8
12
22
15 13
17
18
24
21
19
6
14
25
16
27"
NOTE:
** Flow Restrictor Only Available
With Low Flow Bubbler.
9
30
38
37
36
31
30
34
35
32
28
33
31
29
30
31
Date: 03/12/15
Please visit for most current specifications.www.acorndrinkingfountains.com
INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

Repairs must be made with Acorn Engineering parts only. Please order through your local representative
or distributor. The phone number to locate your local representative is 1.800.591.9360.
ACORN ENGINEERING FIELD SERVICE
TOLL FREE 800-743-8259 • LOCAL 626-855-4866 • FAX [phone]
7020-904-001 Page 11 of 11
COOLER PARTS BREAKDOWN TABLE
NOTE: See previous page for fixture drawing corresponding to table of parts below.
ITEM #
PART NUMBER DESCRIPTION
1 7003-001-199 BASIN TOP
7000-099-002 LOW-FLOW FLEXIBLE BUBBLER ASSEMBLY
7000-012-001 STAINLESS STEEL BUBBLER ASSEMBLY
7000-002-001 CHROME PLATED BRASS BUBBLER ASSEMBLY
3 0124-032-000 #8 x 3/4" LG PHIL FLAT HD SELF TAPPING SCREW
4 7000-006-000 FLAT DRAIN GASKET
5 7003-180-000 DRAIN TAILPIECE
6 7003-003-199 BACK PANEL
7 7003-007-199 SUPPORT STRUT
8 7003-250-000 COLD CONTROL
7003-816-020 APRON ASSEMBLY - GRANITE
7003-826-001 APRON ASSEMBY - STAINLESS STEEL
7003-029-020 SENSOR OP APRON ASSEMBLY - GRANITE
7003-029-005 SENSOR OP APRON ASSEMBLY - STAINLESS STEEL
10 7003-095-001 VALVE ASSEMBLY (N/A FOR -SO)
11 7003-099-000 PUSHBUTTON (N/A FOR -SO)
7003-004-020 COVER - GRANITE
7003-035-299 COVER - STAINLESS STEEL
13 7003-201-000 CONDENSER
7012-801-000 COMPRESSOR
7012-030-001 COMPRESSOR - 220V
7012-802-000 START RELAY
7012-031-000 START RELAY - 220
7012-803-000 START CAPACITOR
7012-032-000 START CAPACITOR - 220
17 7003-350-000 FAN BLADE
7003-302-000 FAN MOTOR
7012-062-001 FAN MOTOR - 220V
19 7003-120-000 EVAPORATOR ASSEMBLY
20 7003-014-199 HANGER BRACKET
21 1895-123-000 SUPPLY INLET CONNECTION
22 0124-031-000 #8 x 3/8" LNG SLOTTED HEX WASHER HD SCREW
23 0124-051-000 #8 x 3/8" LONG ALLEN PAN HEAD SCREW
24 2169-000-000 1/4" O.D. TUBING
25 7012-055-000 TUBE INSULATION
26 7003-093-001 FLOW RESTRICTOR - LOW-FLOW BUBBLER ONLY
27 7003-830-000 UNIVERSAL MAINTENANCE TOOL (N/A for -SO)
28 7001-200-001 SOLENOID/VALVE MOUNTING ASSY
29 7000-050-001 VALVE CARTRIDGE ASSY
30 0308-009-000 #8-32 NYLON INSERT LOCKNUT
31 0331-023-000 #8 S/S FLAT WASHER
32 7003-023-199 CARTRIDGE MTG BRACKET, SENSOR OP
33 7000-059-199 1-1/4"-18 NORMALLY OPEN VALVE CAP
34 7003-027-199 SENSOR BRACKET, SENSOR OP
35 2562-369-001 9VDC SENSOR
36 7001-202-199 SENSOR SPACER
37 0711-407-199 POWER SUPPLY, 240VAC/9VDC
38 7003-028-199 TRANSFORMER BRACKET
18
9
2
12
14
15
16
Date: 03/12/15
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INSTALLATION, OPERATIONS & MAINTENANCE MANUAL