PARTS & SERVICE MANUAL for TS-24, 36, 48, 60 and 72
Thermal Shelves
The Merco Thermal Shelves are manufactured from .090” aluminum specifically selected
for even heat transfer. All units are heliarc welded for strength and rust-free long life.
The insulated heat and cable base combined with the infinitely adjustable heat control
lets you “dial-in” precise warming for any requirement.
The Merco thermal Shelves are engineered for efficient, dependable service throughout
the years. Like any piece of fine equipment with moving parts and broad temperature
ranges, physical wear takes its toll. When this happens, the information found in this
manual will prove very helpful. Although the instructions are easy to follow, all repair
procedures should be carried out by a qualified Merco Certified Service Representative.
• THIS MANUAL SHOULD BE RETAINED FOR FUTURE REFERENCE •
TSservicemanual REV: 1/25/07
TS REPLACEMENT PARTS
A
B
C
D
E
F
P
N
O
M
L
K
J
I
G
H
• Common Parts To All •
ITEM # DESCRIPTION PART #
A Thermal Base See List
B Thermal Cable (Voltage & Size) See List
C Coil Cover See List
D Bottom Cover See List
E Corner Guard 080001
F Foot, Phenolic 000329
G No Longer Used N/A
H Screw, Foot 000604
I Screws 000591
J Coil Cover Insert 080002
K Pilot Light 000274
L Knob (Inf Control) 000320
M Cordset, Voltage See List
N HEYCO Bushing See List
O Infinite Control (Voltage) See List
P
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TS Series Service Manual
TS-24/B
ITEM # PART # DESCRIPTION QUANTITY / UNIT
A ** Thermal Base, TS-24 1
111560
B
C ** Coil Cover 1
D ** Bottom Cover 1
E 080001 Corner Guards 4
F 000329 Foot, Rubber 4
H 000604 Screw, Foot 4
J 080002 Coil Cover Insert 2
K 000274 Pilot Light 1
L 000320 Knob, For “O” 1
M
N 000170 HEYCO, Strain Relief 1
O
111561
111562
072036
072037
050377
050378
Thermal Cable, 120V, 300W, 6.5’
Thermal Cable, 208V, 300W, 6.5’
Thermal Cable, 240V, 300W, 6.5’
Cordset, 120V
Cordset, 208V & 240V
Infinite Control, 120V
Infinite Control, 208V & 240V
1
1
1
1
1
1
1
NOTE: All parts listed above are for standard units only. Please call factory for custom sizes.
TS-36/B
ITEM # PART # DESCRIPTION QUANTITY / UNIT
A ** Thermal Base, TS-24 1
111661
B
C ** Coil Cover 1
D ** Bottom Cover 1
E 080001 Corner Guards 4
F 000329 Foot, Rubber 4
H 000604 Screw, Foot 4
J 080002 Coil Cover Insert 3
K 000274 Pilot Light 1
L 000320 Knob, For “O” 1
M
N 000170 HEYCO, Strain Relief 1
O
111662
111663
072036
072037
050377
050378
NOTE: All parts listed above are for standard units only. Please call factory for custom sizes.
Thermal Cable, 120V, 500W, 11’
Thermal Cable, 208V, 500W, 11’
Thermal Cable, 240V, 500W, 11’
Cordset, 120V
Cordset, 208V & 240V
Infinite Control, 120V
Infinite Control, 208V & 240V
1
1
1
1
1
1
1
TS Series Service Manual
3
TS-48/B
ITEM # PART # DESCRIPTION QUANTITY / UNIT
A ** Thermal Base, TS-24 1
111661
B
C ** Coil Cover 1
D ** Bottom Cover 1
E 080001 Corner Guards 4
F 000329 Foot, Rubber 4
H 000604 Screw, Foot 4
J 080002 Coil Cover Insert 4
K 000274 Pilot Light 1
L 000320 Knob, For “O” 1
M
N 000170 HEYCO, Strain Relief 1
O
111662
111663
072036
072037
050377
050378
Thermal Cable, 120V, 500W, 11’
Thermal Cable, 208V, 500W, 11’
Thermal Cable, 240V, 500W, 11’
Cordset, 120V
Cordset, 208V & 240V
Infinite Control, 120V
Infinite Control, 208V & 240V
1
1
1
1
1
1
1
NOTE: All parts listed above are for standard units only. Please call factory for custom sizes.
TS-60/B
ITEM # PART # DESCRIPTION QUANTITY / UNIT
A ** Thermal Base, TS-24 1
111775
B
C ** Coil Cover 1
D ** Bottom Cover 1
E 080001 Corner Guards 4
F 000329 Foot, Rubber 4
H 000604 Screw, Foot 4
J 080002 Coil Cover Insert 5
K 000274 Pilot Light 1
L 000320 Knob, For “O” 1
M
N 000170 HEYCO, Strain Relief 1
O
111776
111777
072036
072037
050377
050378
NOTE: All parts listed above are for standard units only. Please call factory for custom sizes.
Thermal Cable, 120V, 750W, 14’
Thermal Cable, 208V, 750W, 14’
Thermal Cable, 240V, 750W, 14’
Cordset, 120V
Cordset, 208V & 240V
Infinite Control, 120V
Infinite Control, 208V & 240V
1
1
1
1
1
1
1
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TS Series Service Manual
TS-72/B
ITEM # PART # DESCRIPTION QUANTITY / UNIT
A ** Thermal Base, TS-24 1
111775
B
C ** Coil Cover 1
D ** Bottom Cover 1
E 080001 Corner Guards 4
F 000329 Foot, Rubber 4
H 000604 Screw, Foot 4
J 080002 Coil Cover Insert 6
K 000274 Pilot Light 1
L 000320 Knob, For “O” 1
M
N 000170 HEYCO, Strain Relief 1
O
111776
111777
072036
072037
050377
050378
Thermal Cable, 120V, 750W, 14’
Thermal Cable, 208V, 750W, 14’
Thermal Cable, 240V, 750W, 14’
Cordset, 120V
Cordset, 208V & 240V
Infinite Control, 120V
Infinite Control, 208V & 240V
1
1
1
1
1
1
1
NOTE: All parts listed above are for standard units only. Please call factory for custom sizes.
WIRING DIAGRAM
TS Series Service Manual
5
THERMAL SHELF TROUBLESHOOTING CHART
PROBLEM REMEDY
Unit won’t heat
A. Is unit plugged in?
B. Is switch turned on?
C. Check cord and main power leads.
D. Check Thermal Cable
E. Check switch.
Unit temperature does not
change after adjusting
A. Infinite Control has failed and needs to be replaced.
Infinite Control up or down.
Note: Not applicable on units with Toggle Switch.
THERMAL CABLE REPLACEMENT INSTRUCTIONS
1. Disconnect power supply from the unit.
2. Turn unit upside down.
3. Remove screws holding bottom cover.
4. Remove bottom cover.
5. Remove coil cover inserts.
6. Remove coil cover.
7. Disconnect Thermal Cable form switch.
8. Remove tape holding Thermal Cable to base.
9. Remove Thermal Cable from the unit.
10. Reassemble in reverse order.
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TS Series Service Manual
DIMENSIONS
(inches/cm)
SPECIFICATIONS
(Standard Models)
Model #
Voltage / Amps
120 208 240
Watts
TS-24 2.5 1.4 1.3 300 24/61.0 13/6.0 19/9.0 0.75/0.021
TS-36 4.2 2.4 2.1 500 36/91.4 18/8.2 25/11.4 1.1/0.031
TS-48 4.2 2.4 2.1 500 48/122.0 24/11.0 32/15.0 1.5/0.042
TS-60 6.3 3.6 3.1 750 60/152.4 29/13.2 38/17.3 1.9/0.54
TS-72 6.3 3.6 3.1 750 72/183.0 35/16.0 45/20.4 2.3/0.07
Length
Inches/cm
Net Wt.*
lbs./kg.
Ship Wt.*
lbs./kg.
Ship Vol.*
cu. ft./cu. m.
TS Series Service Manual
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Merco Savory, LLC
1111 North Hadley Road
Fort Wayne, Indiana 46804
United States of America
Telephone: (260) 459-8200
U.S. Fax: (888) 790-8193 • Int’l Fax: (260) 436-0735
Service Hotline: (800) 678-9511
www.mercosavory.com
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TS Series Service Manual
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