User guide

70
23 40 13 Panel Air Filters
23 40 13.13 Decentralized, Rooftop Units:
23 40 13.13.A. Standard filter section
1. Shall consist of factory--installed, low velocity, throwaway 2--in. thick fiberglass filters of commercially available
sizes.
2. Unit shall use only one filter size. Multiple sizes are not acceptable.
3. Filters shall be accessible through an access panel with “no-- t ool” removal as described in the unit cabinet section
of this specificati on (23 81 19.13.H).
23 81 19 Self--Contained Air Conditioners
23 81 19.13 Small--Capacity Self--Contai ned Air Conditioners (548J*04--09)
23 81 19.13.A. General
1. Outdoor, rooftop mounted, el ectrically controlled, heating and cooling unit utilizing a(n) hermetic scroll com-
pressor(s) for cooli ng duty and heat pump for heating duty.
2. Factory assembl ed, single--piece heating and cooling rooftop unit. Contained within the unit enclosure shall be all
factory wiring, piping, control s, and special features required prior to field start--up.
3. Unit shall use envi ronmentally safe, Puron refrigerant.
4. Unit shall be installed in accordance with the manufacturer’s instructions.
5. Unit must be selected and installed in compliance with local, state, and federal codes.
23 81 19.13.B. Quality Assurance
1. Unit meets ASHRAE 90.1--2004 mi nimum efficiency requi rements.
2. 3--phase units are Energy Star qualified.
3. Unit shall be rated in accordance with AHRI Standards 210/240 and 340/360.
4. Unit shall be designed to conform to ASHRAE 15, 2001.
5. Unit shall be UL-- tested and certified in accordance with ANSI Z21.47 Standards and UL --listed and certified
under Canadian standards as a total pa ckage for safety requirements.
6. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
7. Unit casing shall be capable of withsta nding 500--hour sal t spray exposure per ASTM B117 (scribed specimen).
8. Unit casing shall be capable of withstanding Federal Test Method Standard No. 141 (Method 6061) 5000--hour sal t
spray.
9. Unit shall be designed in accordance with ISO 9001:2000, and shall be manufactured in a facility registered by
ISO 9001:2000.
10. Roof curb shall be designed to conform to NRCA Standards.
11. Unit shall be subjected to a completely automated run test on the assembly line. The data for each unit will be
stored at the factory, and must be available upon request.
12. Unit shall be designed in accordance with UL Standard 1995, including tested to withstand rain.
13. Unit shall be constructed to prevent intrusion of snow and tested to prevent snow intrusion into the control box up
to 40 mph.
14. Unit shake t ested t o assurance level 1, ASTM D4169 to ensure shipping reliability.
23 81 19.13.C. Delivery, Storage, and Handling
1. Unit shall be store d and handled per manufacturer’s recommenda tions.
2. Lifted by crane requires either shipping top panel or spreader bars.
3. Unit shall only be stored or positioned in the upright position.
23 81 19.13.D. Project Conditions
1. As specified in the contract.
23 81 19.13.E. Project Conditions
1. As specified in the contract.
23 81 19.13.F. Operat ing Characteristics
1. Unit shall be capable of starting and running at 115_F(46_C) a mbient outdoor temperature, meeting maximum
load criteria of AHRI Standard 210/240 or 340/360 at ± 10% voltage.
2. Compressor with standard controls shall be capable of operation from 25_F(--4_C), ambient outdoor temperat-
ures. Accessory winter start kit is necessary if mechanically cooling at ambient temperatures below 25_F(--4_C).
3. Unit shall be capable of simultaneous heating duty and defrost cycle operation when using accessory electric
heaters.
4. Unit shall discharge supply air vertically or horizontally as shown on contract drawings.
548J