Operation Manual
GT-18 Series Glasswashers
GT-18, GT-18+1, GT-18+1L, GT-18+1R, GT-18+2, GT-18+2-IC and GT-18+3
(manufactured after August 2006)
GT-18
GT-18+2
Glastender, Inc. · 5400 North Michigan Road · Saginaw, MI · 48604-9780 800.748.0423 · 989.752.4275 · Fax 989.752.4444 · www.glastender.com
Rev. 03-24-14 |
© 2010 Glastender, Inc. |
Index
Topic |
Page |
Introduction..................................................................................................... |
1 |
What is a glasswasher?.................................................................................... |
1 |
Utility Requirements and Connections........................................................... |
2 |
Main Section - Front View.............................................................................. |
2 |
Uncrating and Start-Up Instructions............................................................... |
3 |
Operation......................................................................................................... |
4 |
Thermostat Control................................................................................. |
4 |
Low Water Pressure................................................................................ |
4 |
Exploded View of GT-18 Series Glasswashers............................................... |
5 |
Wiring Diagrams ......................................................................................... |
6-8 |
Useful Information About Water, Detergent and Sanitizer............................. |
9 |
Important Information about Chemicals....................................................... |
10 |
Tips for Trouble-Free Operation................................................................... |
11 |
Cleaning Instructions..................................................................................... |
12 |
Trouble Shooting Guide................................................................................ |
13 |
Warranty........................................................................................................ |
14 |
Glastender, Inc. • 5400 North Michigan Road • Saginaw, MI • 48604-9780 800.748.0423 • 989.752.4275 • Fax 989.752.4444 • www.glastender.com
Introduction
This manual describes the operational features of the GT-18, GT-18+1, GT-18+1L, GT-18+1R, GT-18+2, GT-18+2-IC and GT-18+3 model glasswashers. Please review this information before attempting installation and operation. Long term, trouble-free operation will follow if good housekeeping and maintenance procedures are followed. Thank you for selecting Glastender, Inc. products.
What is a Glasswasher?
Glastender, Inc. has been manufacturing automatic glasswashers since 1969. Today, Glastender glasswashers have been installed around the world. But what is a glasswasher? It is simply a piece of machinery that washes glassware, which eliminates the need for human labor and the conventional three-compartment sink. The glasswasher is, in effect, a mechanized three-compartment sink. It “washes”, “rinses”, and “sanitizes” glassware.
Note the Simplicity:
Function Design
Wash 120ºF (48.9ºC) water and a preset portion of detergent join in the tank. During operation, 5 gallons per minute of hot soapy water are pumped in a forceful, but gentle, spray pattern across the moving glassware. When the wash cycle is complete, all water is drained. While the drain is still open, clean water pre-rinses the holding tank to prepare for the rinse and sanitize cycle.
Rinse and 120ºF (48.9ºC) water and a preset portion of sanitizer and rinse aid join in the tank. During Sanitize operation, 5 gallons per minute of rinse water are pumped in a forceful, but gentle, spray pattern across the moving glassware. At the end of the cycle, all water is drained so the next load can
begin with fresh, clean water.
Please read on to learn more about this simple machine.
Glastender, Inc. |
• |
5400 North Michigan Road • Saginaw, MI • 48604-9780 |
1 |
800.748.0423 |
• |
989.752.4275 • Fax 989.752.4444 • www.glastender.com |
1.General Plumbing
2.Drain
Utility Requirements and Connections
a.1/2” OD (or larger) copper to 3/8” FMPT adapter provided
b.Minimum water pressure is 25 PSI
c.Maximum water pressure is 100 PSI. Install water pressure regulator if line pressure is over 100 PSI. Water valve on unit has built-in strainer and flow control to provide consistent volume between 25 and 100 PSI
d.Install separate water shut-off valve
e.Unit has built-in air gap - vacuum breaker is not required
f.Maximum temperature is 150ºF (66ºC)
g.Minimum temperature is 120ºF (49ºC)
h.Consumption is 2-1/2 gallons per cycle
a.1-1/2” tailpiece
b.Use open type floor drain for maximum drainage
3.Electrical
4.Detergent
a.120V, single phase, 60Hz, 6-foot grounded cord included
b.Dedicated 15 amp circuit recommended
c.Power requirements - 3.5 amps
a.Extra heavy duty, non-foaming, commercial liquid dishwashing detergent is required - .30% concentration
b.Consult local chemical supplier to match detergent with local water conditions
5.Sanitizer
6.Rinse Aid
7.Installation Considerations
a. Liquid chlorine bleach (sodium hypochlorite - 5.25% solution) adjusted to 50 ppm
a. Liquid Rinse Aid adjusted for proper sheeting
a.1” clearance required to remove top
b.Front side service is essential
c.Detergent, Sanitizer, and Rinse Aid containers are stored externally - six-foot lengths of tubing are provided. Storage for three one-gallon containers is required within five feet
Main Section Front View
Digital
Temperature
Gauge
Start Switch 
Chemical Pump
Prime Switch
Electronic
Control Timer
GT-18 Glasswasher with front panel removed
2 |
Glastender, Inc. |
• |
5400 North Michigan Road • Saginaw, MI • 48604-9780 |
800.748.0423 |
• |
989.752.4275 • Fax 989.752.4444 • www.glastender.com |
Uncrating and Start-Up Instructions
The glasswasher is shipped in two cartons. After uncrating, follow this procedure:
1.Set in place and install top.
2.Place chemical Feed Lines into the proper chemical containers.
a.Red is detergent.
b.Blue is rinse aid.
c.Clear is sanitizer.
WARNING: The chemicals used in commercial glasswashing are very harsh. Exposure to human skin can cause severe burns. Chemical containers should be stored in a manner and/or location that prevents them from spilling or splashing. Chemical containers must be secured. Please consult your chemical vendor to ensure proper storage or call the Glastender factory to purchase a clipon chemical rail, part number 01000710.
3.After utility connections described above are completed, plug in glasswasher.
4.Depress Prime switches to fill Feed Lines. NOTE: Always cycle the machine after using the prime switches. Undiluted chemicals will damage stainless steel.
5.Cycle the glasswasher and check chemical settings.
6.If chemical adjustment is required, unplug glasswasher, remove front panel, and adjust chemicals as required using the Electronic Control Timer. See chemical adjustment procedure below.
Chemical Adjustment Procedure
The chemical strengths should be tested with a professional test kit by the chemical supplier. Water samples should be taken during the wash cycle and the rinse cycle.
Detergent - .30% concentration
Sanitizer - 50 PPM (sodium hypochlorite [bleach]) Rinse Aid - until proper sheeting is achieved
Detergent: If the factory setting does not render the proper concentration, turn the detergent adjustment knob clockwise to increase or counterclockwise to decrease the dispense time. Repeat chemical testing procedure and adjust again if necessary.
Sanitizer: If the factory setting does not render the proper concentration, turn the sanitizer adjustment knob clockwise to increase or counterclockwise to decrease the dispense time. Repeat chemical testing procedure and adjust again if necessary.
Rinse Aid: If the factory setting does not render the proper level of sheeting, turn the rinse aid adjustment knob clockwise to increase or counterclockwise to decrease the dispense time. Run a test cycle to check wash results and adjust again if necessary.
Rinse Aid
Detergent
Sanitizer
Electronic Control Timer
7.Replace panel and plug in glasswasher. Cycle the glasswasher and check chemical settings. Repeat step 6 if necessary.
Glastender, Inc. |
• |
5400 North Michigan Road • Saginaw, MI • 48604-9780 |
3 |
800.748.0423 |
• |
989.752.4275 • Fax 989.752.4444 • www.glastender.com |
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