Murdock A511.5 Series Installation and operating instructions

TECHNICAL ASSISTANCE TOLL FREE TELEPHONE NUMBER:
1.800.591.9360
Technical Assistance Fax: [phone]
COMPLIES WITH
7020-921-001 RVA 05/28/21
Test rating conditions are
compliant with ARI 1010.
Federal
Public Law
111-380
(No Lead) Member of
MURDOCK
15125 Proctor Ave.
City of Industry, CA
91746 U.S.A.
Phone [phone]
626-336-4561
Fax [phone]
www.murdockmfg.com
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 WARRANTY - UNITED STATES & CANADA
LIMITED EXPORT WARRANTY - One year on parts only.
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.
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.
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.
Murdock assumes no responsibility for use of void or
suspended data. © Copyright Murdock, City of
Industry, CA Member of Morris Group International.
Please visit www.murdockmfg.com for most
current specifications.
A511.5 Series
Compact, Free Standing Water Cooler
A511105F-G / A511105S-G / A511105Q-G / A511405F / A511405S /
A511405Q
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
WATER COOLERS

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
strainer 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.
A511.5
Page 2 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
GENERAL NOTES:
1. ALL DIMENSIONS ARE IN INCHES [MM]
2. ALLOW 4 INCHES [102 MM] MINIMUM CLEARANCE PER SIDE FOR VENTILATION
3. STOP VALVE, TRAP, & ELECTRICAL OUTLET NOT SUPPLIED
AIR FLOW
181
4"
ELECTRIC
OUTLET 21
2"
2"
331
2"
121
2"
37
8"
6"
12"
1"
283
4"
413
8"
ORIFICE
HEIGHT
Ø114
WASTE
38 OD
COPPER TUBE
SUPPLY
114 TRAP
(NOT FURNISHED)
321
2"
TAILPIECE
13
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
WATER COOLERS

INSTALLATION:
1. Provide rough-ins as shown in Roughing-In and Dimensional Drawing.
2. Anchor water cooler to wall through anchor clips on the bottom of the base.
7. Assemble bottom cover to water cooler with screws furnished.
2. Air within the water cooler system 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.
6. Plug water cooler in to electrical outlet and make sure unit begins to function.
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
leaks.
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.
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. After thoroughly flushing the 3/8” O.D. supply line, connect water supply to water cooler.
5. Make up 1-1/4” O.D. P-Trap waste connection.
3. Remove the front panel from the water cooler by taking out the screws on each side at the bottom front, press
the panel sides together at the bottom so that front panel clips disengage from the housing sides and carefully
pull forward and down. Set panel aside in a safe place where it will not be damaged.
A511.5
Page 3 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
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
WATER COOLERS

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.
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.
6. All burrs must be removed from outside of cut tubes before inserting into coupler or other components.
1. Adjustments
2. Provide 4” minimum clear space on fixture sides to allow for proper ventilation through cabinet louvers.
11. Due to cold waste water, Acorn Engineering recommends that p-trap supplied by installer be insulated to
prevent excessive condensation.
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. 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.
3. Water supply is 3/8” Outside Diameter copper tube. Waste is 1-1/4” Outside Diameter.
4. Completely flush supply lines of all foreign debris before connecting to fixture. Water cooler designed to not
affect 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 copper tube when inserted into the coupler as damage to the o-ring will result.
IMPORTANT:
8. This unit must be grounded per the requirements of applicable electrical codes.
9. 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.
IMPORTANT : ASSUREZ-VOUS QUE LA FONTAINE D'EAU POTABLE RÉFRIGÉRÉE SOIT
DÉBRANCHÉE DE LA PRISE DE COURANT MURALE ET QUE LE ROBINET D'ALIMENTATION D'EAU
SOIT FRMÉ AVANT D'EFFECTUER LES RÉPARATIONS NÉCESSAIRES.
a. Cartridge – The water flow can be adjusted through the pushbutton using a straight blade
screwdriver and turning clockwise to increase flow and counterclockwise to decrease flow.
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.
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.
A511.5
Page 4 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
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
WATER COOLERS

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 and
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.
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.
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. 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.
A511.5
Page 5 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
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
WATER COOLERS

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 Murdock 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 VALVE PARTS BREAKDOWN
STANDARD CARTRIDGE VALVE PARTS BREAKDOWN
ITEM # PART NUMBER DESCRIPTION
1 7000-050-001 Valve Cartridge Assembly
2 7000-060-000
Valve Cartridge
3 7000-053-199 Jam Nut
ITEM # PART NUMBER DESCRIPTION
1
2
3
7000-000-001
7000-060-001
0401-015-000
Pushbutton Bubbler Assembly
Valve Cartridge
O-Ring
4 7000-008-199 Bubbler Adapter
57000-003-000 Bubbler Washer
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.
A511.5
Page 6 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
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
WATER COOLERS

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:
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.
1. Firmly and fully insert the tubing end into the push-in
fitting up to the tube stop located approximately ½”
deep.
INSERTING THE TUBE:
COLLET
COLLET
O-RING
O-RING
TUBE STOP
COLLET
COLLET
COLLET
A511.5
Page 7 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
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
WATER COOLERS

NOTE: See next page for table of part numbers corresponding to drawing above.
COOLER PARTS BREAKDOWN DRAWING
A511.5
Page 8 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
4
5
6
12
13
14
17
18
19
9
20
22
9
15
7
2
11
10
16
8
3
21
23
1
24 25
15"
** 26
2425
18"
NOTE:
** Flow Restrictor Only Available
With Low Flow Bubbler.
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
WATER COOLERS

COOLER PARTS BREAKDOWN TABLE
NOTE: See previous page for fixture drawing corresponding to table of parts below.
Repairs must be made with Murdock Manufacturing parts only. Please order through your local
representative or distributor. The phone number to locate your local representative is 1.800.591.9360.
A511.5
Page 9 of 9
RVA 05/28/21
7020-921-001
MURDOCK MFG. • 15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone [phone] or 626-333-2543 • Fax [phone] • www.murdockmfg.com Member of
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
WATER COOLERS
ITEM PART NUMBER DESCRIPTION
7004-010-020 FRONT PANEL - GRAY
7004-080-001 FRONT PANEL - STAINLESS STEEL
2 7004-015-199 FRONT PANEL KICK PLATE
7012-015-000 START RELAY
7012-031-000 START RELAY - 220V
7012-003-000 START CAPACITOR
7012-032-000 START CAPACITOR - 220V
7012-014-001 COMPRESSOR
7012-030-001 COMPRESSOR - 220V
6 7003-350-000 FAN BLADE
7003-302-000 FAN MOTOR
7012-062-001 FAN MOTOR - 220V
8 7000-021-001 "Y" STRAINER
7004-009-020 SIDE PANEL - GRAY
7004-081-199 SIDE PANEL - STAINLESS STEEL
10 7004-024-199 BACK PLATE
11 0124-056-000 #8 x 3/8" LONG PHILLIP PH SHEET METAL SCREW
12 7000-039-001 DRAIN TUBE ASSEMBLY
13 7000-005-199 DRAIN ADAPTER
14 7000-006-000 FLAT DRAIN ADAPTER GASKET
15 0152-040-000 ALLEN FLAT HEAD SCREW
7000-099-002 LOW FLOW BUBBLER ASSEMBLY
7000-012-001 STAINLESS STEEL BUBBLER ASSEMBLY
7000-000-001 STAINLESS STEEL PUSHBUTTON BUBBLER ASSY
7004-063-199 BASIN TOP
7004-060-199 Q OPTION BASIN TOP
18 7004-607-001 PUSHBUTTON ASSEMBLY
19 7004-052-001 ACTIVATION ASSEMBLY
20 7004-100-001 EVAPORATOR ASSEMBLY
21 7003-250-000 COLD CONTROL
22 7003-201-000 CONDENSER
23 7012-050-000 FILTER / DRYER
24 2169-000-000 1/4" OD LLDPE TUBING, BLUE
25 7012-055-000 FOAM PIPE INSULATION 3/8" ID x 1/4" THK
26 7003-093-001 FLOW RESTRICTOR - LOW-FLOW BUBBLER ONLY
17
1
7
9
3
16
4
5