Technical Specifications for 110 120 gas dryers 1.docx

TECHNICAL/PERFORMANCE SPECIFICATIONS

ITEM # 1 – 110/120 POUND (NON-PRODUCTION) GAS HEATED DRYING AND CONDITIONING TUMBLERS:

Furnish and install three (3) each 110/120-pound gas heated drying and conditioning dryers with internal lint collection. The dryers shall be single door, non-pass-through type dryer. Outside make-up air is not required.

Within the laundry, the new dryers shall be located where existing dryers are located on the clean side of the laundry to work in conjunction with the existing small washers.

1. Unit shall be a drying and conditioning tumbler, laundry, commercial type, non-pass-through Size – 110/120-pound cylinder.

2. Furnish and install a new 480-volt power disconnect box for the new dryers. Install a red warning indicator and a lock-on device on the handle of the branch circuit breaker for the power supply circuit for dryer to within six (6) feet of the floor. Electrical characteristics – 480 volts, 3 phase, 60 cycles. Electrical installation shall include ¾ inch EMT conduit with compression fittings. Disconnects shall be installed in accordance with NEC 110.26 (A) (1) (2)

3. Dryers shall have a color touch screen controls & information systems” that incorporate automatic/manual machine operation, self-testing, fault display and built-in diagnostics. Dryer shall be capable of programming each category of textiles. Each program shall be listed on a laminated printed card or paper showing the items dried. Example – Program 1 – Micro Mops – 130 degrees – Dry time 35 min – cool down 8 minutes on a laminated card or paper and attached to the dryer for the employees use.

4. Galvanized cylinders required.

5 Reversing and non-reversing required.

6. Tumbler shall be Gas heated.

7. Light required to designate that tumbler is in operation.

8. Tumbler shall have internal lint collection.

9. Tumblers shall be equipped with Over-Dry Protection

10. Tumbler's exhaust air shall be directed to outside atmosphere.

11. A secondary lint collection system shall be installed. Tumblers shall have In-line Lint Filters installed that are self-Cleaning, duct mounted, with fusible link spray head for fire suppression.

12. The front and sides of the dryers shall incorporate a durable cart bumper and kick plate to protect the front and sides of the tumbler from damage from carts. The durable cart bumpers shall also be installed on the tops of the dryers for protection from tall transport carts.

13. Drying and conditioning tumbler shall have a LED beacon rotary light (colored Amber) identifying end of drying cycle for the hearing impaired. Dryer shall also have an audible alarm to indicate when drying cycle has ended.

14. Normal stop-push buttons and emergency stop buttons shall be colored red. An illuminating (when activated) emergency stop button shall be installed on the drying conditioning tumbler. A Yellow background with legend shall be installed behind the emergency stop button.

15. Drying conditioning tumbler shall be equipped with lockout/tag out for servicing and maintenance of equipment. Tags and locks shall be provided by the contractor. All lockout/tag-out locations shall be marked and identified on the machine with instructions on lock-out procedures for the equipment offered. Lockout/Tag-out procedures include all electrical, air, water, hydraulic etc. Relief valves shall be installed for lockout/tag-out procedures. Procedures shall be permanently mounted on each machine for the mechanics use.

16. The dryer shall be equipped with a combustion auto response system that will detect a fire within the dryer cylinder. The system shall incorporate a multi-port manifold to saturate the load. A flow alarm valve shall be installed in the fire suppression system and connected to a rotary beacon LED light (colored RED) and audible alarm, to be located on the dryer, to indicate if a fire exists in the dryer. The dryers shall also be connected to the building fire alarm system to alert authorities of a fire in the dryers. (contactor shall utilize the fire alarm company that the station uses to connect the system) The dryer(s) shall be connected to a dedicated domestic water pipe with a tamper proof valve. A backflow preventer shall be installed within six (6) inches of the domestic water main that is connected to the dedicated domestic water pipe. A maintenance valve shall be installed on the branch domestic water line before entry into the dryers and drain into a floor drain if available for maintenance of the fire suppression system.

17. Exhaust ductwork shall be cylindrical and have large, easily accessible, hinged access panels/doors installed for easy clean-out and manual firefighting. Exhaust air ductwork shall be insulated and wrapped with White PVC covering with identification and flow markings and shall be discharged through the roof.

18. All ductwork located outside shall be galvanized steel. Ductwork shall be sealed watertight, identified and have directional flow markings installed.

19. All ductwork located on the roof shall be installed for hurricane protection and include lightning protection.

20. The housing shall have doors located at an ergonomic readily accessible height and shall be hinged with a heavy-duty latch and door handle. The doors shall have a window fabricated from a commercial grade of shock and heat resistant glass.

21. An hour meter shall be installed on each dryer that will show actual hours of run time of the dryers.

22. Each dryer shall be equipped with a totalizing non-resettable gas meter. The non-resettable gas meter is required for the dryers to prove fuel consumption is less than the heat input limit in therms per year. The meters are to be in-line multivariable mass vortex type flow meters.

23. Furnish and install a one (1) 4-Plex GFI receptacle outlet between by dryer for mechanics use.

24. A blow-down device will be installed within the dryer location. A minimum (1 each) and shall be capable of reaching around all dryers. This device(s) shall include:

a. A gauged air pressure regulator, with quick disconnect, capable of regulating air pressure from 0 PSI to 30 PSI.

b. Minimum 50-foot length of heavy duty reinforced non-kink air hose on an automatic retractable reel.

c. Trigger operated air nozzle with any necessary extensions for reaching hard to reach areas.