
MODULAR DROP-IN: TWO WELL HOT
The Vollrath Company, L.L.C. 
1236 North 18th Street 
Sheboygan, WI 53081-3201 U.S.A. 
Customer Service: 800.628.0830 
Canada Customer Service: 800.695.8560 
Main Fax: 800.752.5620 or 920.459.6573
Technical Services: 800.628.0832 
Technical Services Fax: 920.459.5462
Modular Drop-In: Two Well Hot
DESCRIPTION
The modular drop-in is designed for top-mount installation and 
does not require hard-wiring. The drop-in comes complete 
with a 6-ft. (182.8 cm) power cord with plug and a 4-ft. 
(121.9 cm) control cord for remote installation.
Full-perimeter drip-edge contains spills and condensation 
within the stainless steel countertop area of the drop-in. 
Drip-edge adds additional strength to the flange area.
Drop-in can operate wet or dry, however, moist operation is 
recommended for even heating of the food product. It meets 
NSF4 performance standards when using moist heat.
High-density glass-fiber insulation allows zero-clearance 
installation and use of 625W elements for lower energy 
consumption and reduced costs. Also available with 1000W 
elements.
Stainless steel wells are 6³⁄₈" (16.2 cm) deep to allow use of 
full-size and fractional pans up to 6" (15.2 cm) deep while still 
providing moist heat. Adaptor bars are recommended when 
using fractional pans.
WARRANTY: All models shown come with Vollrath’s standard 
warranty against defects in materials and workmanship. For full 
warranty details, please refer to the Vollrath Equipment and 
Smallwares Catalog.
Project:
Item Number:
Quantity:
MODELS
120V 
Infinite 
Control
120V 
Thermostatic
Control
208V 
Infinite 
Control
208V
Thermostatic
Control
208-240V
Infinite 
Control
208-240V 
Thermostatic
Control
240V 
Infinite 
Control
240V
Thermostatic
Control
1000W 
Per Well 
3639901 36399 Standard  –
3639951 3639950 Manifold – 
3639961 3639960 Manifold Yes 
3639911 3639910 Standard – 
3639971 3639970 Manifold – 
3639981 3639980 Manifold Yes
3640060 Standard – 
3640051 Manifold – 
3640061 Manifold Yes 
3640011 Standard – 
3640071 Manifold – 
3640081 Manifold Yes
625W 
Per Well Drain Auto-Fill
36400 Standard – 
3640050 Manifold – 
3640060 Manifold Yes 
3640010 Standard – 
3640070 Manifold – 
3640080 Manifold Yes
36472 Standard – 
3647250 Manifold – 
3647260 Manifold Yes 
3647210 Standard – 
3647270 Manifold – 
3647280 Manifold Yes
FEATURES
❑ Top is 18-gauge stainless steel, with ³⁄₈" (9.5 mm) overhang 
on all sides and die-stamped with full-perimeter drip-edge. 
❑ Breaker gasket included for installation under drip-edge.  
❑ Flat work surface around opening.  
❑ Deep drawn well is 20-gauge stainless steel, 6³⁄₈" (16.2 cm) 
deep. 
❑ Standard 1000W or 625W heating element.  
❑ Infinite or thermostatic control. 
❑ Power indicator light. 
❑ Standard drain is ½" (1.3 cm) stainless steel fitting welded to 
pan with ball valve shutoff below exterior housing. 
❑ Manifold drain option is 1" (2.5 cm) copper tubing and 
retains individual well shut-off and adds manifold shutoff.
❑ Unit insulated on sides, between wells, and below element 
assembly with high-density glass fiber insulation.
❑ Exterior housing is 20-gauge galvanized steel. 
❑ Drop-in is supplied with stainless steel control panel 
connected to bottom of unit for shipping. 
❑ Control panel may remain on unit or be remote mounted.  
❑ Control wires contained in flexible rubber cord.  
❑ Unit comes with cord and plug and does not require 
hard-wiring installation.
❑ Positioning clips provided to center drop-in within cutout. 
❑ Standard mounting clips adjustable for up to 3" (7.6 cm) 
thick counters.
❑ Full one-year parts and labor warranty. 
❑ Sheet pan adapter available. Item No. 19186. 
Modular Drop-in: Two Well Hot
The Vollrath Company, L.L.C.
Due to continued product improvement, please consult 
www.vollrathco.com for current product specifications.
Approvals    Date
 

MODULAR DROP-IN: TWO WELL HOT
The Vollrath Company, L.L.C. 
1236 North 18th Street 
Sheboygan, WI 53081-3201 U.S.A. 
Customer Service: 800.628.0830 
Canada Customer Service: 800.695.8560 
Main Fax: 800.752.5620 or 920.459.6573
Technical Services: 800.628.0832 
Technical Services Fax: 920.459.5462
Manifold Drain
Standard Drain
Top V iew
Side View
Front View
Side View
28¼ (71.8) 
12 (30.5) 
20 
(50.8) 
26 
(60) 
28¼ (71.8) 
Overall Flange
27½ ± ¹⁄₈ (69.9) 
Cutout Opening
Standard 
Mounting 
Clips
Standard 
Positioning 
Clips
½ 
(1.3) 
27¼ (69.2) 
26 (66) 
Overall Flange
25¼ ± ¹⁄₈ (64.1)  
Cutout Opening
15 
(38.1) 
³⁄₈ (.95) 
Above 
Counter
8½ 
½ MPT 
Drain 
Connection
23 (58.4) 
27¼ (69.2) 
23 (58.4) 
21½ 
(54.5) 
28¼ (71.8) 
Overall Flange
27½ ± ¹⁄₈ (69.9)  
Cutout Opening
26 (66) 
Overall Flange
25¼ ± ¹⁄₈ (64.1)  
Cutout Opening
19⁷⁄₈
(50.5)
11⁷⁄₈ 
(30.2) 
Standard 
Mounting 
Clips
Standard 
Positioning 
Clips
½ 
(1.3) 
³⁄₈ (.95) 
Above 
Counter
½ MPT 
Drain 
Connection
(21.6) 
8½ 
(21.6) 
17 
(43.2) 
Optional 
Auto-Fill 
Option
6 
(15.2) 
Control Panel Cutout
+.063/-0 (+.160/-0) Tolerance
11¾ (29.4) 
11¼ (28.6) 
3⁵⁄₁₆ 
(8.4) 
1⁹⁄₁₆ (4)
Ø⁵⁄₁₆ 
Dimensions shown in 
inches (centimeters).
Front View
Receptacles
6-15R
5-15R
120V
208 - 240V
5-30R
120V
AUTO-FILL OPTION
Field-installed option that efficiently maintains a constant water level. Eliminates the need to monitor wells and add water, reducing 
operating and labor costs. Attaches easily to manifold drain assembly using simple tools. The check valve/siphon prevents cross 
contamination of drain and potable water lines. NOTE: The auto-fill reservoir is approximately 6 x 17 (15.2 x 43.2) and requires 
additional space in the cabinet.
DIMENSIONS
❑ Cutout Dimensions: 27½" x 25¼" (69.9 cm x 64.1 cm). Opening cutout must have a 7/8" (2.2 cm) corner radius.
.
Modular Drop-in: Two Well Hot
The Vollrath Company, L.L.C.
ELECTRICAL SPECIFICATIONS
Model
36399, 3639950, 3639960, 3639910, 3639970, 3639980 625 1250 120V AC 10.4 5-15P 
3639901, 3639951, 3639961, 3639911, 3639971, 3639981 1000 2000 120V AC 16.7 5-30P 
36400, 3640050, 3640060, 3640010, 3640070, 3640080 625 1250 208V AC 6 6-15P 
3640001, 3640051, 3640061, 3640011, 3640071, 3640081 1000 1500 - 2000 208 - 240V AC 7.2 - 8.3 6-15P 
36472, 3647250, 3647260, 3647210, 3647270, 3647280 625 1250 240V AC 5.2 6-15P
Watts Per 
Well
Total 
Watts
Volts
Nominal 
Amps
NEMA 
Plug
©
2012 The Vollrath Company L.L.C.   Form Number L35506 6/12
Printed in USA