1、 2014 Standard for Performance Rating of Indoor Pool Dehumidifiers AHRI Standard 911 (SI) Price $10.00 (M) $20.00 (NM) Copyright 2014, by Air-Conditioning, Heating, and Refrigeration Printed in U.S.A. Institute Registered United States Patent and Trademark Office IMPORTANT SAFETY DISCLAIMER AHRI doe
2、s not set safety standards and does not certify or guarantee the safety of any products, components or systems designed, tested, rated, installed or operated in accordance with this standard/guideline. It is strongly recommended that products be designed, constructed, assembled, installed and operat
3、ed in accordance with nationally recognized safety standards and code requirements appropriate for products covered by this standard/guideline. AHRI uses its best efforts to develop standards/guidelines employing state-of-the-art and accepted industry practices. AHRI does not certify or guarantee th
4、at any tests conducted under its standards/guidelines will be non-hazardous or free from risk. Note: This standard supersedes AHRI Standard 910-2011. The test requirements were deleted from Appendix C and replaced with a reference to ASHRAE Standard 190. For I-P ratings, see AHRI Standard 910 (I-P)-
5、2014. TABLE OF CONTENTS SECTION PAGE Section 1. Purpose .1 Section 2. Scope 1 Section 3. Definitions1 Section 4. Classification2 Section 5. Test Requirements .3 Section 6. Rating Requirements 4 Section 7. Minimum Data Requirements for Published Ratings 7 Section 8. Operating Requirements 7 Section 9
6、. Marking and Nameplate Data 8 Section 10. Conformance Conditions .8 TABLES Table 1. Classification of Indoor Pool Dehumidifiers .2 Table 2. Conditions for Standard Rating Tests and Operating Requirements .5 Table 3. Minimum External Resistance .6 Table 4. Basic Pumping Penalty (PPB) vs. Liquid Flow
7、 Rate (WF) .6 APPENDICES Appendix A. References - Normative .9 Appendix B. References - Informative .9 _ AHRI STANDARD 911 (SI)-2014 1 PERFORMANCE RATING OF INDOOR POOL DEHUMIDIFIERS Section 1. Purpose 1.1 Purpose. The purpose of this standard is to establish for Indoor Pool Dehumidifiers: definitio
8、ns; classifications; test requirements; rating requirements; minimum data requirements for Published Ratings; operating requirements; marking and nameplate data; and conformance conditions. 1.1.1 Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers,
9、installers, contractors and users. 1.1.2 Review and Amendment. This standard is subject to review and amendment as technology advances. Section 2. Scope 2.1 Scope. This standard applies to factory-made residential, commercial and industrial Indoor Pool Dehumidifiers, as defined in Section 3. 2.1.1 E
10、nergy Source. This standard applies to electrically operated, vapor-compression refrigeration systems. 2.2 Exclusions. This standard does not apply to the rating and testing of individual assemblies for separate use. Section 3. Definitions All terms in this document will follow the standard industry
11、 definitions in the ASHRAE Terminology website (https:/www.ashrae.org/resources-publications/free-resources/ashrae-terminology) unless otherwise defined in this section. 3.1 Economizer. Factory-made assembly installed in an electrically operated, vapor compression refrigeration system that takes adv
12、antage of favorable weather conditions to reduce cooling and thereby improve a buildings energy performance by introducing up to 100% outside air into a building. 3.2 Indoor Pool Dehumidifier. A type of air-cooled or water-cooled electrically operated, vapor compression refrigeration system; factory
13、 assembled as a single package or split system, which includes an indoor cooling/dehumidifying coil, an air reheat coil, compressor(s) and an air moving device. It may also include a Refrigerant Heat Recovery Unit, an auxiliary refrigerant condenser, Economizer, and an air-to-air heat recovery devic
14、e. It shall provide the function of dehumidifying, air circulation, air reheating and may include the function of air-cooling, air-cleaning, pool water heating and air-to-air heat recovery. 3.3 Moisture Removal Capacity (MRC). The amount of condensate produced by the unit which includes the effects
15、of reheat coils, circulating fans and other components in the air stream; excluding supplementary heating, cooling or outdoor air; and expressed in kg of moisture/h. 3.4 Moisture Removal Efficiency (MRE). A ratio of the MRC in kg of moisture/h to the power input values in kW at any given set of Rati
16、ng Conditions expressed in kg of moisture/kWh. 3.5 Published Rating. A statement of the assigned values of those performance characteristics, under stated Rating Conditions, by which a unit may be chosen to fit its application. These values apply to all units of like nominal size and type (identific
17、ation) produced by the same manufacturer. As used herein, the term Published Rating includes the rating of all performance characteristics shown on the unit or published in specifications, advertising or other literature controlled by the manufacturer, at stated Rating Conditions. 3.5.1 Application
18、Rating. A rating based on tests performed at application Rating Conditions (other than Standard Rating Conditions). AHRI STANDARD 911 (SI)-2014 _ 2 3.5.2 Standard Rating. A rating based on tests performed at Standard Rating Conditions. 3.6 Rating Conditions. Any set of operating conditions under whi
19、ch a single level of performance results and which causes only that level of performance to occur. 3.6.1 Standard Rating Conditions. Rating Conditions used as the basis of comparison for performance characteristics. 3.7 Refrigerant Heat Recovery Unit. A factory-made assembly of elements by which ref
20、rigerant vapor flow and water flow are maintained in such heat transfer relationship that the refrigerant vapor is desuperheated and the water is heated. 3.8 “Shall“ or “Should.“ “Shall“ or “should“ shall be interpreted as follows: 3.8.1 Shall. Where “shall“ or “shall not“ is used for a provision sp
21、ecified, that provision is mandatory if compliance with the standard is claimed. 3.8.2 Should. “Should“ is used to indicate provisions which are not mandatory but which are desirable as good practice. 3.9 Standard Air. Air weighing 1.2 kg/m3which approximates dry air at 21.0C and at a barometric pre
22、ssure of 101.3 kPa. Section 4. Classification Equipment covered within the scope of this standard shall be classified as shown in Table 1. Table 1. Classification of Indoor Pool Dehumidifiers Designation AHRI Type Arrangement Single Package Indoor SPI FAN COMP EVAP REHEAT SPI-PH FAN COMP POOL HEAT E
23、VAP REHEAT Single Package Indoor Water-Cooled SPI-W FAN COMP EVAP REHEAT COND SPI-W-PH FAN COMP POOL HEAT EVAP REHEAT COND Single Package Indoor Air-Cooled SPI-A FAN COMP EVAP REHEAT COND SPI-A-PH FAN COMP POOL HEAT EVAP REHEAT COND _ AHRI STANDARD 911 (SI)-2014 3 Table 1. Classification of Indoor P
24、ool Dehumidifiers (continued) Designation AHRI Type Arrangement Split System Indoor Air-Cooled SSI-A FAN COMP EVAP REHEAT COND SSI-A-PH FAN COMP POOL HEAT COND EVAP REHEAT Single Package Indoor with Economizer SPI-E FAN COMP EVAP REHEAT ECONOMIZER SPI-PH-E FAN COMP POOL HEAT EVAP REHEAT ECONOMIZER S
25、ingle Package Indoor Water-Cooled with Economizer SPI-W-E FAN COMP EVAP REHEAT COND ECONOMIZER SPI-W-PH-E FAN COMP POOL HEAT EVAP REHEAT COND ECONOMIZER Single Package Indoor Air-Cooled with Economizer SPI-A-E FAN COMP EVAP REHEAT COND ECONOMIZER SPI-A-PH-E FAN COMP POOL HEAT EVAP REHEAT COND ECONOM
26、IZER Split System Indoor Air-Cooled with Economizer SSI-A-E FAN COMP COND EVAP REHEAT ECONOMIZER SSI-A-PH-E FAN COMP POOL HEAT COND EVAP REHEAT ECONOMIZER Section 5. Test Requirements 5.1 Test Requirements. Published Ratings shall be verified by tests conducted in accordance with the test method des
27、cribed in ASHRAE Standard 190 and at the Rating Conditions in Section 6. 5.1.1 Equipment. Indoor Pool Dehumidifiers shall be tested using all components as recommended by the manufacturer. 5.1.2 Electrical Conditions. Nameplate voltages for 60 Hz systems are shown in Table 1 of ANSI/AHRI Standard 11
28、0. Nameplate voltages for 50 Hz systems shall include one or more of the utilization voltages shown in AHRI STANDARD 911 (SI)-2014 _ 4 Table 1 of IEC Standard 60038. Tests shall be performed at the nameplate rated voltages and frequencies unless otherwise specified in this standard. For equipment wh
29、ich is rated with 208/230 dual nameplate voltages, standard rating tests shall be performed at 230 V. For all other dual nameplate voltage equipment covered by this standard, the standard rating tests shall be performed at both voltages or at the lower voltage if only a single Standard Rating is to
30、be published. Section 6. Rating Requirements 6.1 Standard Ratings. Standard Ratings shall be established at the Standard Rating Conditions specified in Table 2 and in Section 6.3. 6.1.1 Applicability. Direct conversion of values from testing performed under AHRI Standard 910 (I-P) shall not be used.
31、 6.2 All Standard Ratings shall be verified by tests in accordance with Section 5. 6.2.1 Values of Standard Ratings. Standard Ratings relating to MRC shall be a net value, including the effects of circulating fan heat, but not including supplementary heat. Power input shall be the total power input
32、for the operation of the compressor(s), fan(s), control(s), safety device(s), pump power adjustment (Table 2) and other items required as part of the system for normal operation excluding heating devices. Airflow rates shall be expressed in m3/h of Standard Air to the nearest 20.0 m3/h. Capacity des
33、ignation shall be expressed in W and kg of moisture/h to the nearest 0.1. Moisture Removal shall be expressed in kg of moisture/h to the nearest 0.1. MRE shall be expressed in kg of moisture/kWh to the nearest 0.1. Water flow rate shall be expressed in L/s to the nearest 0.01 L/s up to and including
34、 1 L/s and to the nearest 0.05 L/s for over 1 L/s. Water pressure drop shall be expressed to the nearest 4.0 kPa. _ AHRI STANDARD 911 (SI)-2014 5 Table 2. Conditions for Standard Rating Tests and Operating Requirements Unit Configurations for Testing6 Return Air Entering Outdoor Ambient3 Liquid Temp
35、erature Entering Heat Exchanger1Pool Water Chiller Other Liquid Dry-bulb C Wet-bulb C Dry-bulb C C C C Dehumidification“A” 100% Internal Air Rejection 28.0 22.02N/A N/A N/A N/A “B” 100% Remote Rejection 28.0 22.0235.0 27.0 7.0 30.0 or 43.08“C” Internal Air Plus Pool Water Rejection or Another Reject
36、ion7 28.0 22.0228.0 27.0 7.0 30.0 or 43.08Maximum High-Temperature Operating Conditions 32.0 29.0446.0 32.0 32.0 32.0 or 46.08Insulation Effectiveness 28.0 25.0527.0 27.0 27.0 27.0 Notes: 1. Unit inlet water flow rate shall be specified by the manufacturer. 2. 28.0C dry-bulb and 22.0C wet-bulb is eq
37、uivalent to 60% RH at sea level. 3. The wet-bulb temperature condition is not required when testing air-cooled condensers which do not evaporate condensate. 4. 32.0C dry-bulb and 29.0C wet-bulb is equivalent to 80% RH at sea level. 5. 28.0C dry-bulb and 25.0C wet-bulb is equivalent to 80% RH at sea
38、level. 6. Manufacturer must select at least configuration “A” or “C” as a minimum certification requirement. B can be added to either configuration A or C. 7. Manufacturer must list both means of simultaneous methods of refrigerant heat rejection, such as domestic water storage tanks, etc. 8. When t
39、esting with a dry cooler. 6.3 Standard Rating Conditions. The conditions of test for Standard Ratings shall be established at the Standard Rating Conditions specified in Table 2. 6.3.1 Indoor-side airflow rate shall be determined at an indoor-side airflow rate outlined below. 6.3.1.1 Ducted equipmen
40、t shall be tested at the airflow rate delivered when operating against the minimum external static pressure specified in Table 3 or at a lower airflow rate if so specified by the manufacturer. Non-filtered ducted equipment shall be tested at the airflow rate delivered when operating against the mini
41、mum external static pressure specified in Table 3 with an additional 0.02 kPa of external static pressure. 6.3.1.2 Non-ducted equipment shall be tested at the airflow rates obtained at zero external static pressure. All power consumed by the fan(s) shall be included in the power input to the unit. 6
42、.3.1.3 The manufacturer shall specify a single airflow rate for all tests required in this part of the standard unless the equipment provides automatic adjustment of airflow rate. A separate control signal output for each step of airflow rate shall be considered as an automatic adjustment. _ AHRI ST
43、ANDARD 911 (SI)-2014 7 Table 3. Minimum External Resistance Standard Dehumidifier Airflow, m3/h Minimum External Resistance1, kPa 5940 0.12 5940 0.25 Note: 1. For units tested without an air filter installed, increase the applicable tabular value by 0.02 kPa. 6.3.2 Outdoor-side airflow rate shall be
44、 determined at the outdoor-side airflow rate specified by the manufacturer where the fan drive is adjustable. Where the fan drive is non-adjustable, ratings shall be determined at the outdoor-side airflow rate inherent in the equipment when operated with all of the resistance elements associated wit
45、h inlets, louvers, and any ductwork and attachments considered by the manufacturer as normal installation practice. Once established, the outdoor-side air circuit of the equipment shall remain unchanged throughout all tests prescribed herein. Airflow rates shall be expressed in m3/h of Standard Air.
46、 6.3.3 Liquid Flow Rates. 6.3.3.1 For Indoor Pool Dehumidifiers with integral liquid pumps, ratings shall be determined at a liquid flow rate specified by the manufacturer. 6.3.3.2 For Indoor Pool Dehumidifiers without integral liquid pumps, ratings shall be determined at a liquid flow rate specifie
47、d by the manufacturer. 6.3.3.3 The manufacturer shall specify a single liquid flow rate for all of the tests required in this part of the standard unless automatic adjustment of the liquid flow rate is provided by the equipment. A separate control signal output for each step of liquid flow rate will
48、 be considered as an automatic adjustment. 6.3.4 Power Input of Liquid Pumps. If a unit has a Refrigerant Heat Recovery Unit, a pump power adjustment is to be added to the power consumed by the unit, using Equation 1. Table 4 shall apply to all units that include a refrigerant to liquid heat recovery device. PP = WF (PPB P) + C 1 Where: C = 400 W/(L/s) based on 6.0 m external head. PP = Pump power adj
