Atlas Metal WQHC Series User manual

HOT/COLD PAN - WQHC SERIES
Service and Installation Manual
Please read this manual completely before attempting to install or operate this equipment!
Notify carrier of damage! Inspect all components immediately. See page 1.
DROP-IN HOT/COLD PAN (3"
RECESSED TOP) DUAL TEMP.
HOT OR COLD SERVICE
Effective Date: 2021
IMPORTANT INFORMATION
READ BEFORE USE

CONTENTS
RECEIVING
& INSPECTING EQUIPMENT....................................................................................................................................................................................1
SERIAL AND MODEL # LOCATION..............................................................................................................................................................................................1
WQHC SPECIFICATIONS, FEATURES AND ACCESSORIES...................................................................................................................................................2
OVERALL DIMENSIONS, ELECTRICAL CHARACTERISTICS AND CUT-OUT REQUIREMEMENTS ............................................................................. 3
PARTS LIST.......................................................................................................................................................................................................................................... 4
INSTALLATION, OPERATION AND S/S MAINTENANCE...................................................................................................................................... .............. 5,6
ELECTRICAL SCHEMATICS.................................................................................................................................................................................... ....... 7 , 8 , 9 , 10 ,11
LIMITED WARRANTY.......................................................................................................................................................................... ............................................ 12
WARRANTY INFORMATION.......................................................................................................................................................... ............................................... 13
RECEIVING
AND INSPECTING THE EQUIPMENT
1. VISUALLY INSPECT THE SHIPPING CRATE. DAMAGE SHOULD BE NOTED AND REPORTED TO THE DELIVERING CARRIER.
2. IF DAMAGED, OPEN AND INSPECT CONTENTS WITH CARRIER.
3. IF CRATE IS NOT DAMAGED AND THERE IS CONCEALED DAMAGE TO THE EQUIPMENT, NOTIFY THE CARRIER. NOTIFICATION MUST BE
MADE VERBALLY AND IN WRITING.
4. REQUEST AN INSPECTION BY THE SHIPPING COMPANY FOR THE DAMAGED EQUIPMENT WITHIN 10 DAYS FROM RECEIPT OF THE
EQUIPMENT
5. FREIGHT CARRIERS CAN SUPPLY THE NECESSARY FORMS ON REQUEST.
6. SAVE ALL CRATING MATERIALS UNTIL INSPECTION HAS BEEN MADE OR WAIVED.
SERIAL NUMBER LOCATION
THE SERIAL AND MODEL# CAN BE FOUND ON THE CONDENSING UNIT ENCLOSURE - SEE OPERATORS SIDE CONTROL PANEL WHEN
CALLING ATLAS FOR PARTS AND SERVICE. ALWAYS HAVE THIS INFORMATION AVAILABLE.
SERIAL #:
MODEL #:
INSTALLATION DATE:

Project: ___________
Item No.: ___________
Quantity: ___________
DROP-IN SERVING EQUIPMENT
HOT/COLD PAN
(3” Recessed Top)
Dual Temp.
Hot or Cold Service
WQHC-2
WQHC-3
WQHC-4
TOP: Constructed of 18 gauge, type 304 stainless steel, die stamped
with a raised perimeter bead. There shall be a solid vinyl gasket
under the beaded edge to form a seal to the counter top, thus pre-
venting seepage or marring of the counter top. Embossed mounting
lugs are provided along the inner surface, 3” down from the top, to
hold the pan rails and a full set of removable separator channels in
place.
LINER: The inner liner shall be 18 gauge, type 304 stainless steel,
one piece construction, all welded, ground and polished to a uniform
finish. All corners are coved with a minimum 1/4" radius. The liner
has copper tubing firmly soldered to the top 3” on all sides. A 3/4"
dia. drain with strainer, 4" copper nipple, and valve is provided.
INSULATION: Each pan is fully insulated with high density fiber-
glass,1-1/2” thick on all sides, 2” thick on the bottom and enclosed
with 22 gauge galvanized steel outer case.
HEATING ELEMENT: Individual wells shall be 18 gauge, type 304
stainless steel, one piece construction, all welded, ground and pol-
ished to a uniform finish. All corners are coved with a minimum 1/4"
radius. Each well is provided with an 850 watt heating element.
REFRIGERATION SYSTEM: The compressor housing shall be fabri-
cated from galvanized formed angles and bolted to the base of the
unit. A fully self-contained condensing unit is provided with a hermeti-
cally sealed compressor and a thermostat control. The system is
fully charged with CFC free refrigerant and ready to operate.
NOTE: Proper ventilation must be provided in counter
ELECTRICAL: The unit is pre-wired with a hot/cold selector switch
that prevents dual operation, with the required thermostat controls.
The unit is provided with a 6’ long, 3-wire cord and a twist lock plug.
Specifications subject to change without notice.
SPECIFICATIONS STANDARD FEATURES
gDual Temp:- each pan is individually controlled. Unit can
serve as a hot serving pan or
a refrigerated pan. Serving operation can be mixed & matched.
gFactory applied gasket - makes installation a snap and seals
units to the counter top, thus eliminating seepage
g Accommodates standard 12” X 20” pans or fractional size
pans with the use of optional adapter bars
g1-Year Parts & Labor Warranty
g RDVE - Rear Drain Valve Extension
ACCESSORIES
g 5YW - 5-Year Compressor Warranty
g Stainless Steel adapter plates (pgs. DI-51-52)
g CP - Cover Plate with handles, S/S
DI-58
WQHC-4
*Please see Operation & Installation Manual for ALL operation and maintenance details.

MODEL “A” PAN SIZE
HOT OPERATION COLD OPERATION
NEMA
CONFIGU-
RATION
SHIP WT.
(LBS.)
WQHC-2 37-7/8”
(96.20cm)
(2)19-7/8” X 11-7/8” X 9”
(50.4cm X 30.16cm X 22.86cm)
14 amps. - 1.7KW - 120V
8.2 amps. - 1.7KW - 208V
7.1 amps. - 1.7KW - 240V
4.2 amps - 1/4HP - 120V 5-20P
L14-20P
L14-20P
WQHC-3 56”
(142.24cm)
(3) 19-7/8” X 11-7/8” X 9 ”
(50.4cm X 30.16cm X 22.86cm)
21.3 amps. - 2.55KW - 120V
12.3 amps. - 2.55KW - 208V
10.6 amps. - 2.55KW - 240V
5.6 amps - 1/3HP - 120V 5-30P
L14-20P
L14-20P
WQHC-4 74-1/8”
(188.27cm)
(4) 19-7/8” X 11-7/8” X 9 ”
(50.4cm X 30.16cm X 22.86cm)
16.3 amps. - 3.4KW - 208V
10.7 amps. - 3.4KW - 240V
10.7 amps - 3/4.HP - 120V L14-30P
L14-20P
Atlas Metal Industries 1135 NW 159th Dr. Miami, FL 33169 [phone] Fax: [phone] atlasfoodserv.com
7/23-sc
DI-59
*Units are wired to prevent simultaneous operation
in the hot and cold mode.
A
PLAN VIEW
C
REAR VIEW
OUTER CASE
ELECTRICAL CHARACTERISTICS
PAN
OPENINGS
COUNTER CUT-OUT RE-
QUIRED “C”
224-3/4 X 36-1/8”
(62.86 X 91.75 cm)
35-7/8”
(91.12cm)
324-3/4” X 54-1/4”
(62.86 X 137.79cm)
54-1/4”
(137.79cm)
424-3/4” X 72-3/8”
(62.86 X 183.83cm)
72-1/2”
(184.15cm)
26-1/2”
26-7/8”
24-3/4”
26-1/2”
CUT OUT
TOP FRAME
TOP FRAME
CUT OUT
B
UNIT A B C
WQHC-2 37-7/8” 36 1/8” 35 7/8”
WQHC-3 56” 54 1/4” 54”
WQHC-4 74-1/8” 72-3/8” 72 1/8”
OVERALL DIMENSIONS
SIDE VIEW
OUTER CASE
24-1/2”

Subsidiary of Mercury Aircraft, Inc.
1135 N.W. 159th DR., MIAMI, FL 33169
PHONE [phone], FAX [phone], E-mail: [email protected]
PARTS LIST HOT OR COLD COMBINATION UNIT
WQHC SERIES
ITEM
NUMBER
PART
NUMBER DESCRIPTION
16 S86104-0 Insert side
17 S86105-0 Insert front &
b
ac
k
18
2029-16M6 1/3 HP Compressor (not shown)
(
WQHC-3
)
2029-11M6 1/4 HP Compressor (not shown)
(WQHC-2)
2029-13M6 3/4 HP Com
p
resso
r
(
WQHC-4
)
19
1053-HT 120V-850W Heat Element
(
not shown
)
1054-HT 208V-850W Heat Element (not shown)
1055-HT 240V-850W Heat Element (not shown)
20 S81114-0 Element Holder (not shown)
21 1100 Red Pilot Li
g
ht
22 1800-3917 Solenoid Valve
(
not shown
)
23 1800-3918 Solenoi
d
Coil
(
not shown
)
24 22-100 Safety Switch Control (not shown)
25 494-56 1/16 Expansion Valve (not shown)
26
Suction Accumulator A-AS-384
(
not shown
)
27 S863202 Snap Drain (not shown)
28 7002 Bead Gasket
29 49-1028 Rubber Grom
m
et
(
not shown
)
30 3007-5 3/4” Brass Ni
pp
le
(
not shown
)
31 30-403 3/4” Ind. Valve
32 30-29 Gas Hose Extension
33 30-11 3/4” Fitting Adapto
r
(not shown)
ITEM
NUMBER
PART
NUMBER DESCRIPTION
1 12-202 Master Switch 30 Am
p
-2P
2 1118-1101 Circuit breaker 15 AMP
3 2687-9 Twist Plu
g
L14-20P
(
not shown
)
3.1 2691-3 Twist Plu
g
L14-30P
(
not shown
)
3.2 12-256 Twist Plu
g
L5-30P
(
not shown
)
4 1006-2
Power Cord #14-3 120V w/plug
NEMA 5-20P
(
not shown
)
4.1 1004-3
Power Cord #12-3 120V w/plug
(not shown)
4.2 1011
Power Cord #14-4 120/208-240V
(not shown)
4.3 1004-5
Power Cord #12-4 120/208-240V
(
not shown
)
5 600012 3/8” Romex Connecto
r
(
not shown
)
6 10924 1/2” Connect Conduit (not shown)
7 1092-5 1/2” Bush short AS350(not shown)
8 1092-2 1/2” Flexible Con
d
uit (not shown)
9 1800-3012 Terminal
b
lock
(
not shown
)
10
1111-21 Levernuts 2P s
p
licin
g
(
not shown
)
1111-22 Levernuts 3P splicing (not shown)
1111-23 Levernuts 5P splicing (not shown)
11 Relay 120V 30 Am
p
(not show)
12 1096-96 Hot Thermostat
(
not show
)
13 1097-2 Thermostat Knob
14 Cold Electronic Thermostat
15 112-1252 Manual Control Switch 15 AMP

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INSTALLATION
Provide the correct counter cut-out opening (see chart below), and drop in. The vinyl gasket assures complete seating.
A non-toxic silicone seal may be used between the gasket and countertop (not required).
Note: Units are supplied with a nipple and stop valve to be connected for draining.
“Wastewater connections are to conform to the International Plumbing Code 2003, International Code Council (ICC)
or the Uniform Plumbing Code 2003, International Association of Plumbing and Mechanical Officials (IAPMO)”,
or the equivalent.
---------------------------------------------------------------------------------------------------------------------------------------------
The unit should be level for draining purposes. When installing unit in a counter, it is recommended that the operator
side of the counter be completely open for air circulation. When this is not possible, such as in an island counter, it is
recommended that two grill openings be provided, approximately 18” x 18” of free air for intake and exhaust, at
opposite ends of the counter, and a minimum clearance of 14” at the top, 24” at the back and 10” at each side of the
enclosure.
The unit is supplied with a power cord and NEMA plug. Refer to the data plate on the compressor housing for the
amperage and voltage information. Use a licensed electrician when installing power source.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
OPERATION
HEATING OPERATION COOLING OPERATION
Unit runs with water or without water.
With‐Wateroperation
1)TurnMasterSwitchtoONposition
2)TurnSelectorSwitchtoHOT
3)Closeindividualdrainvalves.(Reddrainhandles)
4)Filltheunitwithwater(preferablyhotwater)untilthelevelassigned.
5)TurntheT‐Stattoposition#10
6)Coverthewellwithalidandwait45minutesfortheunittoheatup.
7)Insertpanswithfood.Becautious,unitishot.
8)Checkthewaterlevelevery2hours.
9)Toturntheunitoff,switchallSelectSwitchesfromONtoOFFandsettheMasterSwitchtoOFF.

Dryoperation(with‐OutWater)
Followsteps1to3
4)TurntheT‐Stattoposition#10
5)Coverthewellwithalidandwait15minutesfortheunittoheatup.
6)Insertpanswithfood.Becautious,unitishot.
7)Toturntheunitoff,switchallSelectSwitchesfromONtoOFFandsettheMasterSwitchtoOFF.
1. TurnMasterSwitchtoONposition.
2. TurnSelectSwitchtoCOLD
3. ElectronicThermostatisautomaticallysetfromfactory.
4. Coverwellwithalidandwait45minutesfortheunitto
cool.
5. Insertpans.
6. Toturntheunitoff,switchallSelectSwitchesfromON
toOFFandsettheMasterSwitchtoOFF.
HEATING TO COOLING OPERATION COOLING TO HEATING OPERATION
1. KeepmasterswitchinONposition.
2. TurnselectorswitchtoCOLD.
3. ElectronicThermostatwillchangetemperaturesautomatically.
4. Openalldrainvalves(redandbluedrainhandles)toremovehotwatercompletelyand
wait40minutes.
5. Closereardrainvalve(bluedrainhandle)
6. Thewellwillnotoperateuntilithascooled.Pleaseallowtimeforthewelltocool.
7. Removeanyhotoperationservingmaterial.(Pans,food,etc.)
8. Coverthewellwithalidandwait45minutesfortheunittocool.
9. Insertpans
10. Toturntheunitoff,switchallSelectSwitchesfromONtoOFFandsettheMaster
SwitchtoOFF.
1. KeepmasterswitchinONposition.
2. TurnselectorswitchtoHOT.
3. ElectronicThermostatwillchangetemperatures
automatically.
4. Closeindividualdrainvalves.(Redhandles)
5. Ifusingwater,filltheunitwithhotwatertothemarked
levelinthewell.
6. Coverthewellwithalidandwait15minutestoheat.
7. Insertpans
8. Checkthewaterlevelevery2hours.
9. Toturntheunitoff,switchallSelectSwitchesfromON
toOFFandsettheMasterSwitchtoOFF
CUT-OUT SIZE
WQHC-2 36-1/8” X 24-3/4”
WQHC-3 54-1/4” X 24-3/4”
WQHC-4 72-1/2” X 24-3/4”
Digital thermostats
are NOT indicative
of well temperatures.

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MAINTENANCE
NEVER CLEAN PANS WITH A CHLORIDE BASED PRODUCT. CHLORIDES OR IMPROPER CLEANING
COULD SCAR, MARK AND/OR CORRODE PANS. DO NOT USE STEEL WOOL OR ABRASIVE PRODUCTS.
TO CLEAN USE SOAPY WARM WATER, RINSE THOROUGHLY TO REMOVE ALL RESIDUES.
CLEAN CONDENSER COIL REGULARLY.
HEATER SHEATH SHOULD BE PERIODICALLY CLEANED OF LIME OR OTHER BUILT-UP MATERIAL
TO PREVENT ELEMENT OVER HEATING.
FAILURE TO MEET THESE CONDITIONS WILL VOID WARRANTY.

ELEC REFR
CONTROL-1
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-1
NL-1
MASTER SWITCH
L-1
N
N
G
HEAT ELEMENT-1
120V
NEUTRAL- (HEAT ELEMENT)
120V RED
LIMIT CONTROL-1 SOLENOID VALVE-1
120V RED
RELAY-1
6
4
01
N
BREAKER
15 AMPS L-1
COMPRESSOR
120V, 1/4 HP
G
ELEC REFR
CONTROL-2
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-2
L-1
HEAT ELEMENT-2
120V
120V RED
LIMIT CONTROL-2 SOLENOID VALVE-2
120V RED
RELAY-2
6
4
01
N
L-1
1
1
2
2
3
3
4
4
A A
B B
REVISION HISTORY
REV DESCRIPTION DATE BY
1
2
3
4
5
Th p  h  pop
o A M I I. A ho
 ho  o o A
M I I.,   poh.
DATE:
DRAWN BY:
CHECKED BY:
JOB #:
P.O. #: DRAWING No.
SHEET No.
SCALE: 3/4" = 1'-0"
CUSTOMER:
REFERENCE:
SIZE:
OF
1135 NW 159TH DRIVE MIAMI, FLORIDA 33169
02.17.21
OGA
ULLOA -----
WQHC-2
120V-1ph - 1/4 HP
B
------
------ 1 1
L-1
N
NEUTRAL- (HEAT ELEMENT)
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-1
2
1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-2
2
1

ELEC REFR
CONTROL-1
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-1
L-2 L-1
MASTER SWITCH
L-1
L-2
N
L-2
N
G
HEAT ELEMENT-1
HEAT-BLACK L-2 (HEAT ELEMENT)
120V RED
LIMIT CONTROL-1 SOLENOID VALVE-1
120V RED
RELAY-1
6
4
01
N
BREAKER
15 AMPS L-2
COMPRESSOR
120V, 1/4 HP
G
ELEC REFR
CONTROL-2
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-2
L-2 L-1
HEAT ELEMENT-2
HEAT-BLACK L-2 (HEAT ELEMENT)
120V RED
LIMIT CONTROL-2 SOLENOID VALVE-2
120V RED
RELAY-2
6
4
01
N
L-2
1
1
2
2
3
3
4
4
A A
B B
REVISION HISTORY
REV DESCRIPTION DATE BY
1
2
3
4
5
Th p r h  propr
o A M Ir I. A hor
 ho r o o A
M Ir I.,  r proh.
DATE:
DRAWN BY:
CHECKED BY:
JOB #:
P.O. #: DRAWING No.
SHEET No.
SCALE: 3/4" = 1'-0"
CUSTOMER:
REFERENCE:
SIZE:
OF
1135 NW 159TH DRIVE MIAMI, FLORIDA 33169
02.17.21
OGA
ULLOA -----
WQHC-2
120V/208V & 120V/240V -1ph - 1/4 HP
B
------
------ 1 1
L-1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-1
2
1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-2
2
1
208 or 240V 208 or 240V

ELEC REFR
CONTROL-1
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-1
NL-1
MASTER SWITCH
L-1
N
N
G
HEAT ELEMENT-1
120V
NEUTRAL- (HEAT ELEMENT)
120V RED
LIMIT CONTROL-1 SOLENOID VALVE-1
120V RED
RELAY-1
6
4
01
N
BREAKER
15 AMPS L-1
COMPRESSOR
120V, 1/3 HP
G
ELEC REFR
CONTROL-2
1234
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-2
L-1
HEAT ELEMENT-2
120V
120V RED
LIMIT CONTROL-2 SOLENOID VALVE-2
120V RED
RELAY-2
6
4
01
N
L-1
ELEC REFR
CONTROL-3
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-3
L-1
HEAT ELEMENT-3
120V
120V RED
LIMIT CONTROL-3 SOLENOID VALVE-3
120V RED
RELAY-3
6
4
01
N
1
1
2
2
3
3
4
4
A A
B B
REVISION HISTORY
REV DESCRIPTION DATE BY
1
2
3
4
5
Th p  h  pop
o A M I I. A ho
 ho  o o A
M I I.,   poh.
DATE:
DRAWN BY:
CHECKED BY:
JOB #:
P.O. #: DRAWING No.
SHEET No.
SCALE: 3/4" = 1'-0"
CUSTOMER:
REFERENCE:
SIZE:
OF
1135 NW 159TH DRIVE MIAMI, FLORIDA 33169
02.17.21
OGA
ULLOA -----
WQHC-3
120V-1ph - 1/3 HP
B
------
------ 1 1
L-1
N
NEUTRAL- (HEAT ELEMENT)
N
NEUTRAL- (HEAT ELEMENT)
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-1
2
1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-2
2
1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-3
2
1

ELEC REFR
CONTROL-1
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-1
L-2 L-1
MASTER SWITCH
L-1
L-2
N
L-2
N
G
HEAT ELEMENT-1
208 or 240V
HEAT-BLACK L-2 (HEAT ELEMENT)
120V RED
LIMIT CONTROL-1 SOLENOID VALVE-1
120V RED
RELAY-1
6
4
01
N
BREAKER
15 AMPS L-2
COMPRESSOR
120V, 1/3 HP
G
ELEC REFR
CONTROL-2
1234
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-2
L-2 L-1
HEAT ELEMENT-2
HEAT-BLACK L-2 (HEAT ELEMENT)
120V RED
LIMIT CONTROL-2 SOLENOID VALVE-2
120V RED
RELAY-2
6
4
01
N
L-2
ELEC REFR
CONTROL-3
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-3
L-2 L-1
HEAT ELEMENT-3
HEAT-BLACK L-2 (HEAT ELEMENT)
120V RED
LIMIT CONTROL-3 SOLENOID VALVE-3
120V RED
RELAY-3
6
4
01
N
1
1
2
2
3
3
4
4
A A
B B
REVISION HISTORY
REV DESCRIPTION DATE BY
1
2
3
4
5
Th p r h  propr
o A M Ir I. A hor
 ho r o o A
M Ir I.,  r proh.
DATE:
DRAWN BY:
CHECKED BY:
JOB #:
P.O. #: DRAWING No.
SHEET No.
SCALE: 3/4" = 1'-0"
CUSTOMER:
REFERENCE:
SIZE:
OF
1135 NW 159TH DRIVE MIAMI, FLORIDA 33169
02.17.21
OGA
ULLOA -----
WQHC-3
120V/208V & 120V/240V -1ph - 1/3 HP
B
------
------ 1 1
L-1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-1
2
1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-2
2
1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-3
2
1
208 or 240V 208 or 240V

ELEC REFR
CONTROL-1
1234
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-1
L-2 L-1
MASTER SWITCH
L-1
L-2
N
L-2
N
G
HEAT ELEMENT-1
THERMOSTAT (BLACK)
120V RED
LIMIT CONTROL-1 SOLENOID VALVE-1
120V RED
RELAY-1
6
4
01
N
BREAKER
15 AMPS L-2
COMPRESSOR
120V, 1
2 HP
G
ELEC REFR
CONTROL-2
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-2
L-2 L-1
HEAT ELEMENT-2
120V RED
LIMIT CONTROL-2 SOLENOID VALVE-2
120V RED
RELAY-2
6
4
01
N
HEAT
THERMOSTAT-1
L-2
ELEC REFR
CONTROL-3
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-3
L-2 L-1
HEAT ELEMENT-3
120V RED
LIMIT CONTROL-3 SOLENOID VALVE-3
120V RED
RELAY-3
6
4
01
N
ELEC REFR
CONTROL-4
1 2 3 4
9 10 11 12 13 14 15 16 17
THERMOCOUPLE
SELECTOR
SWITCH-4
L-2 L-1
HEAT ELEMENT-4
120V RED
LIMIT CONTROL-4 SOLENOID VALVE-4
120V RED
RELAY-4
6
4
01
N
1
1
2
2
3
3
4
4
A A
B B
REVISION HISTORY
REV DESCRIPTION DATE BY
1
2
3
4
5
Th p r h  propr
o A M Ir I. A hor
 ho r o o A
M Ir I.,  r proh.
DATE:
DRAWN BY:
CHECKED BY:
JOB #:
P.O. #: DRAWING No.
SHEET No.
SCALE: 3/4" = 1'-0"
CUSTOMER:
REFERENCE:
SIZE:
OF
1135 NW 159TH DRIVE MIAMI, FLORIDA 33169
02.17.21
OGA
ULLOA -----
WQHC-4
120V/208V & 120V/240V -1ph - 3/4 HP
B
------
------ 1 1
L-1
HEAT-BLACK L-2 (HEAT ELEMENT) HEAT-BLACK L-2 (HEAT ELEMENT) HEAT-BLACK L-2 (HEAT ELEMENT) HEAT-BLACK L-2 (HEAT ELEMENT)
2
1
THERMOSTAT (BLACK)
2
1
HEAT
THERMOSTAT-2
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-3
2
1
THERMOSTAT (BLACK)
HEAT
THERMOSTAT-4
2
1
208 or 240V208 or 240V208 or 240V208 or 240V

LIMITED WARRANTY
Atlas Metal Industries, Inc. warrants to the Purchaser of this product that the
same shall be free from defects in the workmanship and material for a period of
one year from the date of original installation of the equipment, but not to exceed
eighteen (18) months after date of shipment from factory. During this period of
time Atlas Metal Industries, Inc. will replace all defective parts and will pay for
authorized replacement labor. Replacement and installation of such parts and labor
shall be provided only upon prior written authority of Atlas Metal Industries, Inc.
The Refrigeration warranty is for a twenty (20) month time period and includes
supplying the compressor at a no charge basis provided the damage to the
compressor was not caused by thecustomeror end user. Authorizedreplacement
labor will be paid for a period of one year from date of installation. Freight costs for
defective unit to and from Atlas Metal Industries, Inc. are not included, and all
defective parts must be returned to the factory freight prepaid for evaluation.
ALL WARRANTY LABOR MUST BE AUTHORIZED BY ATLAS METAL
INDUSTRIES, INC. PRIOR TO THE ACTUAL WORK BEING DONE. This
warranty does not apply to any equipment or any part thereof, which has been
subjected to shipping damage, improper voltage, alteration, abuse or misuses, and
does not cover loss of food, other products, or damage to property due to
mechanical or electrical malfunction.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION
OF THE FACE HEREOF. SELLER DISCLAIMS ANY IMPLIED WARRANTY OF
MERCHANTABILITY OF THE GOODS OR THE FITNESS OF THE GOODS FOR
ANY PURPOSE AND BUYER AGREES THAT THE GOODS ARE SOLD “AS IS.”

WARRANTY INFORMATION
In order to have your invoice approved for
payment by the factory, please note the following:
An authorization number must be obtained from
the factory prior to performing any warranty
service.
Atlas Metal will not approve excessive labor due to poor
access to the unit being serviced. If design does not
allow reasonable access, contact the factory.
All travel time that exceeds 100 miles round trip
must be authorized by the factory.
Thank You:
Warranty service Dept.