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All information below is based on industry standard guidelines and should only be used as a guide. All applicable local codes should be met and may vary at the actual installation site.
Dexter OPL Laundries:
1. Dexter washers will drain floor mounted. (no bases required)
2. Small loads accumulate faster. (keep the linen flow through the laundry)
3. Use two or more machines when possible. (not restricted when maintenance is needed)
4. Size alike for multiple machines. (ease of training, fewer parts inventory)
Dryers:
Exhaust duct per dryer should be no longer than 14 feet (4.27M) straight with two 90-degree sweep bends. Use 45 degree angles where possible. Cleanouts should be installed at regular interval lengths. Multiple exhaust ducts entering a main common duct must be at 45 degree angles or less and must never be connected directly across from each other. Make-up air must be provided for each dryer from outdoors.
Water Consumption:
Wash formulas and water consumption vary considerably by the program selected. 2 gallons (7.57L) of water per pound of machine rated capacity is attainable with Dexter washers.
Hot Water Consumption:
Assume the rule of two thirds of water consumed is hot. Incoming ambient water temperature subtracted from desired hot water temperature will give you the degree rise required for your hot water system. The hot water system tank should have enough storage for one hours demand.
Drain Troughs:
If a trough is used it should be about 12” (30.48 cm) to 14” (35.56 cm) deep and 12” (30.48 cm) to 14” (35.56 cm) wide. For trough length, add total washer(s) width(s) and multiply by 1.2. Always plan for maximum drain capacity, which is all washers set at the highest water level draining at once.
Sewer Pipes:
Must be sized large enough to take away in one minute, 0.7 gallons (2.65L) per pound times all rated washer capacities. Drain pipe sizing 3” = 100 (gallons per minute); 4” = 200 (gpm); 5” = 350 (gpm); 6” = 550 (gpm); 7.62 cm = 378.53 (liters per minute); 10.16 cm = 757.06 (lpm); 12.7 cm = 1324.85 (lpm); 15.24 cm = 2081.92 (lpm).
Labor Requirements:
Full time equivalent (FTE) employees. For a laundry with 135 lb (60.8KG) wash capacity and less, provide 1 FTE for each 55lb (24.8KG) of wash capacity. For a laundry with 135lb (60.8KG) wash capacity and more, provide 1 FTE for each 80lb (36KG) of wash capacity.
Washers Only
Electrical (60hz)
Isolated ground connected to green ground terminal at power connection at rear. 3 phase connect to L3, L2, L1, N & Ground. (High leg or wild leg always connected to L3). 1 phase connect to L1, L2, N & Ground.
Control transformer tap changed to actual measured voltage. (measured 200volts-215volts on tap marked 208volt.) (measured 216volts-240volts on tap marked 230volt.) Extract rotation CCW as viewed from front. (CCW all 25lb.,40lb.,45lb.,55lb.,75lb.) (CW all 18lb. Models) If rotation wrong refer to installation manual.
Plumbing:
Hot water and Cold water hoses installed with filter screens and connections tight. Drain line connected to proper sized main drain.
Mounting:
Machine bolted with proper sized bolts. (See installation instructions)
All bolt holes on washer frame used in mounting procedure. Concrete thickness and quality adequate for model being installed. (See installation requirements)
Grouting:
GROUTING REQUIRED on all 200 G-force models.
GROUTING STRONGLY Recommended on all other models
Dryers Only
Mounting:
Level dryer by using supplied leveling legs.
Electrical:
120 volt‑ Black wire is power side at rear power connection. White wire is neutral side at rear power connection. Isolated ground connected to green ground screw at rear.
208-240 volt 1 phase or 3 phase Wire sized properly to supply terminal block Isolated ground connected to green ground screw at rear.
Control transformer tap changed to actual measured voltage tap. (200volt-216volt on 208volt marked tap). (217volt-240volt on 240volt marked tap).
Jumper at terminal strip. Check placement of jumper for high voltage(208-240v) or low voltage (120v). Only on models with dual voltage capabilities. Refer to installation instructions for proper location.
Gas:
Gas line connection ( flexible line permitted ) must be sized to proper rated BTU capacity of the dryer marked on data plate.
Fresh Make Up Air Opening Requirements
1 sq. ft. required for each 30 lb. Single dryer. 1.25 sq. ft. required for each 55 lb. Single dryer. 1.5 sq. ft. required for each Stack Dryer and each 80 lb. Single dryer. Avoid drawing make up air from the room with the washers.
Exhaust Ducting
.3 STATIC BACK PRESSURE maximum at rear exhaust outlet of dryer. If multiple dryers connected to common duct, is the back draft damper installed properly.
Important Installation Points to Remember
Installation errors and return trips cost distributors lost profits
• Does anything need to be removed or added for proper installation?
• Have all the utilities been installed and ready before showing up with equipment?
• Is there a clear path way to get the equipment in and out of the laundry?
• Is the concrete, piping, electrical voltage, venting …. compatible with the new equipment?
• Are contractors needed for any part of the job?
• Can the equipment be off loaded at the site?
• Is a Rigger needed for the project?
• Who is doing the installation?
• Is it clearly defined to the customer?
• Who makes the final connections to utilities. Is it clearly defined to the customer?
• Flooring, bolting, leveling and Grouting errors will compound into short & long term issues!
• Is spacing being considered for safety reasons and machine servicing access.
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