Murdock AR81.8 Series Installation and operating instructions

CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
TECHNICAL ASSISTANCE TOLL FREE TELEPHONE NUMBER:
1.800.591.9360
Technical Assistance Fax: [phone]
Murdock warrants that every cooler, bottle filling station, packaged water chiller, fountain and accessory to be free
from defects in material and workmanship under normal use for one (1) year from date of install or eighteen (18)
months after the date of shipment from the factory, whichever comes first.
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 Murdock under this
warranty. Murdock 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 job site during construction and must be properly maintained after the water
has been introduced into the water cooler or drinking fountain, or Murdock’s limited warranty is void.
LIMITED EXPORT WARRANTY - One year on parts only.
Murdock warrants the compressor and hermetically sealed refrigeration system, including cooling coil assembly
when part of the hermetically sealed refrigeration system, to be free from defects in material and workmanship
under normal use for an additional four (4) years from the end of the one (1) year period described above.
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
COMPLIES WITH
Member of
Murdock™ assumes no responsibility for use
of void or superseded data. © Copyright
Murdock Mfg., City of Industry, CA Member of
Morris Group International. Please visit
www.murdockmfg.com for most current
specifications. 15125 Proctor Ave, City of Industry,
CA, 91746 U.S.A.
Phone [phone]
626-336-4561
Fax [phone]
www.murdockmfg.com
Federal
Public Law
111-380
(No Lead)
04/20/2021
AR81.8 Series
(220V Compressor Only)
Test rating
conditions are
compliant with
ARI 1010.
Ligature Resistant, Barrier Free, Inverted, Fully Recessed Wall Mounted
Electric Drinking Fountain
AR81408S-BF SHOWN
7020-998-001

Page 2 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
Prior to roughing consult with local, state, and federal codes for proper mounting height.
3
19"
[483]
24"
[610]
311
2"
[800]
17"
[432]
12"
[305]
36"
[914]
[25]
WALL
OPENING
WALL
OPENING
MIN WALL
OPENING
*33"
[838]
4
7
551
2"
[1410]
17"
[432]
52
[1333]
WALL
OPENING
8
11
10
5
5
FINISHED FLOOR
III. STOP VALVE NOT PROVIDED
I. ALL DIMENSIONS ARE IN INCHES
[MM]
* I I . D I M E N S I O N S H O W N I S F O R
RECOMMENDED ADULT HEIGHT.
ADJUST VERTICAL DIMENSIONS AS
NECESSARY TO COMPLY WITH
FEDERAL, STATE, & LOCAL CODES
NOTES:
*29"
[737]
C
L
1
2"
*79
[2019]
6
1"
2
1
9
AR81.8 SERIES ROUGHING-IN AND DIMENSIONAL DRAWING:
2"
[51]
10
11
C
L
GENERAL NOTES:
5. MOUNTING FRAME ASSEMBLY
3. VANDAL RESISTANT
PUSHBUTTON ACTUATOR FOR
BUBBLER
7. VENTILATION GRILL
6. 8.0 GPH CHILLER
2. OPTIONAL -BF LIGATURE
RESISTANT CUP/BOTTLE FILLER
1. LIGATURE RESISTANT BUBBLER
4. VANDAL RESISTANT
PUSHBUTTON ACTUATOR FOR
CUP/BOTTLE FILLER
ROUGH-IN PLUMBING NOTES
8. 3/8” OD CHILLER WATER
INLET
11. WATER SUPPLY INLET
9. 3/8” OD CHILLER WATER
OUTLET
10. 1-1/4” SLIP JOINT WASTE
CONNECTION
*29"
*27
[699] *27"
[686]
1
2"
1
2"
33
8"
[86]
4"
[102]
51
4"
[133]
8
C
L
2"
[51]
9
11
TOP VIEW
WALL OPENING
FRONT VIEW SIDE VIEW
TOP VIEW
ROUGH-IN
*29"
[737]
53"
[1346]
WALL
OPENING FACE
PLATE FRAME
WASTE

Page 3 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
5. Do NOT solder tubes inserted into the chiller, bottle filler or the fountain strainer as damage to the o-rings on
the push-in fittings may result.
2. Provide 4” minimum clear space in front of upper trim panel and above in-wall chiller to allow for proper
ventilation.
3. Waste is 1-1/4” Outer Diameter. Chiller water inlet is 3/8” OD copper tube. Chiller water outlet is 3/8” Outer
Diameter copper tube. Drinking Fountain water inlet is 3/8” OD copper tube. Bottle Filler water inlet is 3/8”
OD copper tube. Water line by others from in-wall chiller to drinking fountain must have adequate insulation.
11. Due to cold waste water, Acorn Engineering recommends that waste piping supplied by installer be insulated
appropriately 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 shall be installed as close as possible to the quick closing valve.
PRIOR TO INSTALLATION:
4. Completely flush supply lines of all foreign debris before connecting to fixture. Water cooler 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.
6. All burrs must be removed from outside of cut tubes before inserting into strainer or other components.
1. Water Supply Service Stop Valve, Water Connections and Electrical Connections to be supplied by others in
accordance with local codes.
1. Read all installation instructions carefully, before proceeding.
8. This unit must be grounded per the requirements of applicable electrical codes.
5. It is common for electrical equipment to be grounded to water lines either within a structure or away otherwise
remains unchanged by the materials in the water cooler. Every attempt should be made to prevent this kind of
grounding from generating feedback into the water cooler creating electrolysis. Electrolysis will cause a
metallic taste or cause water content to increase.
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 are not approved by Acorn Engineering.
7. Power supply must be identical in voltage, cycle and phase to that specified on the chiller data plate. Refer to
submittal.
10. Fixture operates within water pressure range of 174 kPa (25 psig) to 724 kPa (105 psig). Acorn Engineering
will not warranty chiller damaged when connected to supply lines with flow pressure lower than 174 kPa (25
psig) or higher than 724 kPa (105 psig). A pressure regulator must be furnished by others on supply line if
inlet pressure is greater than 724 kPa (105 psig).
3. Provide mounting surface, sufficient to support the fixture and loads on the fixture.
2. Carefully remove all fixture components from packaging, preventing scratching or damage. Inspect fixture and
all parts from damages and all parts are bolted on.
4. Provide rough-ins as shown on the roughing-in and dimensional drawing, including water supply, drain pipe
and gravel drain well. (See rough-in details)
7. Completely flush water supply lines of all foreign debris, before connecting to the fixture.
IMPORTANT:
6. Receptacle(s) must be wired to a GFCI protected circuit. Fixture must be earth grounded per NEC (National
Electrical Code).

Page 4 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
6. Position the top of the Fountain assembly over the Frame S-clip just below the Chiller basepan and engage
while securing bottom tabs to Frame assembly with #10-32 screws and washers provided. Scews must
thread into captive nuts behind Frame tab. Tighten screws to pull the Fountain flush with the wall.
9. After thoroughly flushing supply line, connect water supply to chiller.
3. Recheck all water and drain connections with water flowing through system.
1. Provide wall opening as indicated in Rough-in sheet. Provide structural support around opening for frame
anchoring if required.
4. Secure Frame to wall through sides top and bottom using anchoring hardware by others.
8. Make-up 1-1/4” OD waste connection.
START UP:
1. Before assembling the upper and lower Removable Access Covers to the Fountain, but after thoroughly
flushing the supply line and connecting it to the fixture, turn on building water supply and check all
connections for leaks.
3. Insert and center mounting frame into the rough-in blockout, with sides, top and bottom flange against
finished wall. Level and secure using mounting hardware provided by the installer. Verify if level and shim if
necessary.
2. Air within the Fountain or the structure supply piping will cause an irregular outlet stream until purged out
by incoming water.
4. Install upper Removable Access Cover to the Fountain by sliding the Cover into the Fountain’s Mounting
Channel (DETAIL A), then secure the upper and lower Covers to the Fountain’s frame using the supplied
#8-32 screws & washers (Illustrated Below).
5. Place the Chiller Unit onto the basepan of the frame assembly. Make up electrical connections as required.
Refer to A910.8 Chiller manual 7020-978-001 for complete Chiller installation information.
2. Carefully remove Drinking Fountain and Chiller mounting frame from packaging to prevent damage.
7. Make up supply connections to 3/8” OD Tube x 1/4” OD Tube Y-Strainer Chiller and riser connections from
Chiller to Fountain. Riser 1/4” OD tube from Chiller to Fountain should be insulated to prevent condensation
and maintain cool water temperature. Refer to Water Path and Chiller detail.
INSTALLATION STEPS: (ILLUSTRATED ON FOLLOWING PAGES)
DETAIL A
A
Upper Access Cover
Fountain Frame Assembly
#8-32 Screws (Provided)
2
1
3
1
2
3
Mounting Channel
4
4

Page 5 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
Frame Assembly
Centered On Opening
Fountain
Assembly
Mounting Tab
Upper Removable
Vented Access
Cover
(See Details)
Chiller Unit
Lower
Removable
Access Cover
17"
[179]
53"
[1346]
12 [305]"
Wall Depth
AR81.8 SERIES INSTALLATION:
29"
[737]

Page 6 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
NOTE: Remote water chiller is intended for indoor installation (fixture has not been rated for outdoor installation). A dielectric
coupling must be used to connect the water chiller to the water supply. A nonmetallic coupler is furnished with this water
cooler to meet this requirement.
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.
ROUGH-IN:
GENERAL NOTES:
1. ALL DIMENSIONS ARE IN INCHES [MM].
2. ALLOW 4 INCHES [102MM] MINIMUM CLEARANCE ON TOP AND FRONT FOR VENTILATION.
3. IT IS RECOMMENDED THAT ALL WATER OUTLETS BE CONNECTED DIRECTLY AND NO MORE THAN 7 FEET AWAY
FROM THE CHILLER. FOR ANYTHING GREATER THAN 7 FEET, CHILLED WATER MAY NOT BE EXPOSED UNTIL ALL
WATER IN RISER HAS BEEN RELEASED. ALL CHILLED WATER PIPING IS INTENDED TO BE COVERED WITH
APPROPRIATE INSULATION TO MAINTAIN TEMPERATURE AND AVOID CONDENSATION
171
4"
[438]
THERMOSTAT
ADJUSTMENT
AIR LOUVERS
IN
OUT
3"
[76]
155
8"
[397] 21
8"
[54]
51
4"
[133]
11
8"
[29]
101
8"
[257]
3/8" [9.5] OD COPPER
TUBING WATER OUTLET
ELECTRICAL
KNOCK OUT
11
8"
[30]
7
8"
[24]
13
4"
[44]
3/8" [9.5] OD COPPER
TUBING WATER INLET
ELECTRICAL
KNOCKOUT
JUNCTION BOX
AIR FLOW
AIR FLOW
AIR FLOW
AIR FLOW AIR FLOW
VOLTAGE / HERTZ F.L. AMPS CHILLIN G CAPACITY
115V AC / 60Hz 4.6 A MP S 8.0 GP H
230V AC / 50Hz 2.5 A MP S 8.0 GP H
POW ER CONNECTIONS FO R SIN G LE PHASE CHILLER
REMOVABLE
ACCESS PANEL
NOTE: INSTALLER MUST REMOVE THE REMOVABLE
ACCESS PANEL TO LOCATE THE JUNCTION BOX
TO MAKE UP WIRING CONNECTIONS
BROWN
GREEN &
YELLOW BLUE
WHITE
GREEN
BLACK
JUNCTION
BOX
CONNECTORS
BY OTHERS
GROUND
SCREW
ELECTRICAL SUPPLY
BY OTHERS
AR81.8 SERIES CHILLER ELECTRICAL:

Page 7 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
IN
OUT IN
OUT
2 31
TO DRINKING
FOUNTAIN
1
OUTIN
4
5
2 3
4
INSULATED 1/4" OD TUBING
Y-STRAINER (PROVIDED)
ANGLE STOP BY OTHERS
CHILLER w/ 3/8" OD TUBE
INLET/OUTLET CONNECTIONS
OPTIONAL -WF1 1500 GALLON
WATER FILTER SHOWN WITH
*NOTE: INSULATION TUBING MAY OVERLAP FITTINGS. ILLUSTRATIONS
MAY SHOW EXPOSED 1/4" OD TUBING FOR CLARITY ONLY.
1
2
3
4
5
1
1/4" OD TUBE INLET/OUTLET
TO DRINKING
FOUNTAIN
1
AR81.8 WATER PATH AND CHILLER DETAIL:

Page 8 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
NOTE: FITTINGS AND TUBE SHOULD BE KEPT
CLEAN, BAGGED AND UNDAMAGED PRIOR TO
INSTALLATION.
PUSH-IN FITTING 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:
Prior to disconnecting 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 1/2”
deep.
COLLET
COLLET
O-RING
O-RING
TUBE STOP
COLLET
COLLET
COLLET

Page 9 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
AR81.8 PART LIST:
ITEM #
PART NUMBER DESCRIPTION
1 7035-440-001 FRAME ASSEMBLY, RECESSED FOUNTAIN
2 7008-050-001 8.0 GPH CHILLER
3 7000-024-001 "Y" STRAINER ASSY, W/ 1/4" NPT X 3/8" OD
4 7000-021-001 "Y" STRAINER ASSY, W/ 1/4" NPT
5 0112-002-000 #10-32 X 1/2" S/S HEX C/R BTN HD SCREW
6 7035-430-001 VENT PANEL, RECESSED FOUNTAIN
7 7000-065-001 PUSH BUTTON W/ CARTRIDGE VALVE ASSEMBLY
8 7000-060-000 FLOW REGULATOR CARTRIDGE (0.5 GPM)
9 7000-091-001 PUSHBUTTON W/HEX ASSY
10 4854-020-001 DECK BUBBLER ASSY., (LR-BPH)
11 4854-030-001 NOZZLE ASSY., LR BOTTLE FILLER
12 7035-444-199 BOTTOM TRIM PANEL, RECESSED FOUNTAIN
13 4956-056-001 GRID STRAINER LIG RESIST W/CLOSE ELL ASSY.
14 7035-410-002 WELDMENT, AI81-A001 REC'D FTN BASIN, BPH
1
2
3
5
6
9
8
7
10
11
12
13
14
4
7

Page 10 of 10 AR81.8
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
ELECTRIC DRINKING FOUNTAIN
Date: 04/20/2021
7020-998-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
ITEM #
PART NUMBER DESCRIPTION ITEM # PART NUMBER DESCRIPTION
1 1895-712-000 3/8"OD - 1/4" OD BULKHEAD CONNECTION 9
1895-708-000 1/4" OD PUSH-IN ELBOW CONNECTION
2 7008-010-199 HOUSING 10 7008-012-199 FRONT PANEL
3 0124-031-000 #8-3/8" HEX WASHER HD SLOTTED SCREW 11 7012-803-000 CAPACITOR
4 7008-015-001 CONDENSOR ASSEMBLY 12 7003-250-000 TEMPERATURE CONTROL
5 0332-013-000 1" OD x 7/16" ID FLAT WASHER 13 1895-121-000 1/4" OD PUSH-IN CONNECTION
6 7012-150-000 3/32" x 1-5/8" HITCH PIN 14 7003-115-001 EVAPORATOR ASSEMBLY
7 7012-805-000 RUBBER FOOT FOR TATUNG 15 7008-013-199 BACK PANEL
8 7003-002-004 115V FAN MOTOR 16 7012-801-001 115V COMPRESSOR ASSY
CHILLER PART LIST - 110VAC:
12
1
1
2
3
4
6
5
7
8
9
11 13
10
16
15
14