ASTM F1075-97(2018)
(Specification)Standard Specification for Dehumidifier, Shipboard, Mechanically Refrigerated, Self-Contained
Standard Specification for Dehumidifier, Shipboard, Mechanically Refrigerated, Self-Contained
ABSTRACT
This specification covers the performance requirements and corresponding test procedures for self-contained shipboard dehumidifiers that use hermetic refrigerant motor-compressors. The components of the dehumidifier, including the motor-compressor, condensing unit, dehumidifying coil, air-circulating fan, and accessories, shall all be enclosed within a metal cabinet. Dehumidifiers shall be evaluated by design capacity test, overload test, inclination test, and corrosion resistance test, and should operate satisfactorily as specified. Requirements for design documentation, schematic drawings, and manufacturer's manual are also considered.
SCOPE
1.1 This specification covers self-contained dehumidifiers using hermetic refrigerant motor-compressors.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 11, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Buy Standard
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F1075 −97 (Reapproved 2018) An American National Standard
Standard Specification for
Dehumidifier, Shipboard, Mechanically Refrigerated, Self-
Contained
This standard is issued under the fixed designation F1075; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 ASHRAE Standards:
ASHRAE 15 Safety Code for Mechanical Refrigeration
1.1 This specification covers self-contained dehumidifiers
2.3 Offıcial Classification Standards:
using hermetic refrigerant motor-compressors.
Uniform Freight Classification Ratings, Rules, and Regula-
1.2 The values stated in inch-pound units are to be regarded tions
as standard. The values given in parentheses are mathematical 2.4 UL Standards:
conversions to SI units that are provided for information only UL 474 Dehumidifiers
and are not considered standard. UL 984 Hermetic Refrigerant Motor—Compressors
2.5 Military Documents:
1.3 The following safety hazards caveat pertains only to the
MIL-S-901 Specification Requirements for Shock Tests,
test methods portion, Section 11, of this specification: This
High Impact (H.I.); Shipboard Machinery, Equipment,
standard does not purport to address all of the safety concerns,
and Systems
if any, associated with its use. It is the responsibility of the user
MIL-STD-167-1 Mechanical Vibrations of Shipboard
of this standard to establish appropriate safety, health, and
Equipment, (Type I—Environmental and Type II—
environmental practices and determine the applicability of
Internally Excited)
regulatory limitations prior to use.
MIL-D-19947 Specification for Dehumidifier, Space, Me-
1.4 This international standard was developed in accor-
chanically Refrigerated, Self-Contained, Naval Shipboard
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 3. Ordering Information
Development of International Standards, Guides and Recom-
3.1 Ordersforproductsunderthisspecificationshallinclude
mendations issued by the World Trade Organization Technical
the following information, as necessary, to describe adequately
Barriers to Trade (TBT) Committee.
the desired product:
3.1.1 Title, ASTM designation, and year of issue,
2. Referenced Documents
3.1.2 Quantity (number of dehumidifiers),
3.1.3 Certification if required, and
2.1 ASTM Standards:
3.1.4 Additions to the specification and supplementary
B117 Practice for Operating Salt Spray (Fog) Apparatus
requirements, if required.
B280 Specification for Seamless Copper Tube for Air Con-
ditioning and Refrigeration Field Service
4. Materials and Manufacture
D1654 Test Method for Evaluation of Painted or Coated
4.1 In addition to the requirements cited in this
Specimens Subjected to Corrosive Environments
specification, the dehumidifiers covered by this specification
D2247 Practice for Testing Water Resistance of Coatings in
shall be designed, constructed, assembled, and tested to com-
100 % Relative Humidity
ply with UL 474, UL 984, and ASHRAE 15. In the event of
1 3
This specification is under the jurisdiction of ASTM Committee F25 on Ships Available from American Society of Heating, Refrigerating, and Air-
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA
Machinery and Piping Systems. 30329, http://www.ashrae.org.
Current edition approved Sept. 1, 2018. Published October 2018. Originally Available from Uniform ClassificationAgent, Tariff Publication Officer, Room
approved in 1987. Last previous edition approved in 2014 as F1075 – 97 (2014). 1106, 222 South Riverside Plaza, Chicago, IL 60606.
DOI: 10.1520/F1075-97R18. Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or WA 98607-8542, http://www.ul.com.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from U.S. Government Printing Office, Superintendent of
Standards volume information, refer to the standard’s Document Summary page on Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://
the ASTM website. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1075 − 97 (2018)
differences between any of the requirements of this specifica- 4.9 Provision shall be made in the frame to permit securing
tion and those of other referenced documents, the requirements the cabinet to any appropriate surface.
of this specification shall govern. The manufacturer shall
4.10 Identification plates shall be of a nonferrous metal or
certify compliance with the above standards for equipment
corrosion-resisting steel and shall conform to UL 474.
furnished and shall be cited in the ULElectricalAppliance and
Utilization Equipment product directories.
5. Performance Requirements
4.2 The dehumidifier shall consist of a motor-compressor,
5.1 The unit shall be capable of condensing at least 1.8 gal
condensing unit, dehumidifying coil, air-circulating fan, and
(7L)ofwaterin24hatanambienttemperatureof90°F(32°C)
accessories, all enclosed within a metal cabinet.The dehumidi-
dry bulb and 60 % relative humidity.
fier shall be complete, self-contained with the refrigeration
5.2 The unit shall operate satisfactorily in a maximum
equipment dehydrated, and charged with the necessary operat-
ambient temperature of 110°F (43°C) and a minimum relative
ing quantity of refrigerant and oil. Each unit shall be ready for
humidity of 30 %. Under these conditions of maximal load, the
operation after removal of shipping protection, opening of
temperature rise of the hermetic motor shall not exceed 158°F
valves where provided, and connection to electric power.
(70°C).
4.3 The motor-compressor shall be of the hermetic type and
5.3 Theequipmentshalloperatesatisfactorilywheninclined
shall consist of a compressor and motor enclosed in a gastight
at an angle of 15° on each side of the vertical, in each of two
shell. The hermetic compressor unit shall conform to UL 984
vertical planes at right angles to each other.
and shall be at least ⁄6 hp. Equipment shall operate on 115-V,
single-phase, 60-cycle alternating current. The unit shall be
6. Other Requirements
protected against overload by a thermal protector built into the
motor. The thermal protection shall be either the manual or
6.1 Design Documentation—A master drawing of a built
automatic reset type.
configuration shall be provided for each of the following:
6.1.1 Complete dehumidifier,
4.4 Piping necessary for the satisfactory operation of the
6.1.2 Motor compressor,
equipment shall be provided by the manufacturer. Tubing shall
6.1.3 Condenser, and
be made of copper in accordance with Specification B280.
Pipingconnectionsshallbearrangedinsuchamannersoasnot
6.1.4 Fan and cooling coil.
to impair the vibration-isolation properties of absorption-type
6.1.5 Each master drawing shall show outline, mounting,
mounts, where such mounts are provided. Piping shall be
attachment, and connection dimensions, including methods
securely supported to minimize strain and vibration. Piping
and sizes of fastenings and clearances for installation and
connections shall not be made of soft solder.
servicing, plus supplementary data as necessary to permit
installation without suppliers assistance. The drawing shall
4.5 Materials used in the manufacture of the equipment
illustrate design, construction, operation (or function), and
shall be corrosion-resistant or treated to resist corrosion. The
identity of parts. Where acceptance tests are required, the tests
method of manufacture shall not impair physical, structural, or
shall be identified, and approval authority and date shall be
corrosion-resistant properties of the components. Materials,
noted on the drawing. Subassembly drawings shall be provided
coatings, and paint systems shall satisfactorily pass the appli-
to supplement master drawings where desirable.
cablesaltsprayandhumiditytestspecifiedinthisspecification.
6.2 Schematic Drawings:
4.6 Bolts, nuts, studs, pins, screws, and such other fasten-
6.2.1 Schematic drawings shall be provided that include all
ings or fittings shall be of a corrosion-resisting material, or of
mechanical, piping and electrical circuits, and connections.
a material treated in a manner to render it adequately resistant
6.2.2 All symbols used for equipment components or parts
to corrosion. Screws exposed in final assembly shall be
shall be given a piece number and identified in the list of
corrosion-resisting material.
materials with the following information:
4.7 Similar parts, including repair parts, or corresponding
6.2.2.1 Piece number,
apparatus furnished on the same contract or order, or built to
6.2.2.2 Quantity required,
thesamedrawings,shallbestrictlyinterchangeablewithoutthe
6.2.2.3 Descriptive name,
necessity of further machining or hand fitting of any kind.
6.2.2.4 Manufacturer,
4.8 A plastic or other chemically inert container shall be
6.2.2.5 Manufacturer’s model or identifying number,
provided for collecting the condensate. The container shall be
6.2.2.6 Manufacturer’s drawing number, and
of a size and configuration that will fit within the cabinet
6.2.2.7 Weight.
enclosure. The container shall be provided with baffles to
prevent the overflow or spilling of water and shall be readily 6.3 Manuals—Manuals shall be typed in accordance with
removable from the dehumidifier cabinet. A male fitting shall the manufacturer’s commercial practice. Photo views of the
be provided from the container for connection of a 0.375-in. equipment shall be included as part of the general description.
(10-mm)insidediameterflexiblerubbertubingfordrainingthe A section shall be provided containing reduced copies of all
condensate (wall thickness 0.125 in. (3 mm)). The rubber drawings required to amplify or illustrate the text including
tubing will not be required to be furnished by
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1075 − 97 (Reapproved 2018) An American National Standard
Standard Specification for
Dehumidifier, Shipboard, Mechanically Refrigerated, Self-
Contained
This standard is issued under the fixed designation F1075; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 ASHRAE Standards:
ASHRAE 15 Safety Code for Mechanical Refrigeration
1.1 This specification covers self-contained dehumidifiers
2.3 Offıcial Classification Standards:
using hermetic refrigerant motor-compressors.
Uniform Freight Classification Ratings, Rules, and Regula-
1.2 The values stated in inch-pound units are to be regarded tions
as standard. The values given in parentheses are mathematical 2.4 UL Standards:
conversions to SI units that are provided for information only UL 474 Dehumidifiers
and are not considered standard. UL 984 Hermetic Refrigerant Motor—Compressors
2.5 Military Documents:
1.3 The following safety hazards caveat pertains only to the
MIL-S-901 Specification Requirements for Shock Tests,
test methods portion, Section 11, of this specification: This
High Impact (H.I.); Shipboard Machinery, Equipment,
standard does not purport to address all of the safety concerns,
and Systems
if any, associated with its use. It is the responsibility of the user
MIL-STD-167-1 Mechanical Vibrations of Shipboard
of this standard to establish appropriate safety, health, and
Equipment, (Type I—Environmental and Type II—
environmental practices and determine the applicability of
Internally Excited)
regulatory limitations prior to use.
MIL-D-19947 Specification for Dehumidifier, Space, Me-
1.4 This international standard was developed in accor-
chanically Refrigerated, Self-Contained, Naval Shipboard
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3. Ordering Information
Development of International Standards, Guides and Recom-
3.1 Orders for products under this specification shall include
mendations issued by the World Trade Organization Technical
the following information, as necessary, to describe adequately
Barriers to Trade (TBT) Committee.
the desired product:
3.1.1 Title, ASTM designation, and year of issue,
2. Referenced Documents
3.1.2 Quantity (number of dehumidifiers),
3.1.3 Certification if required, and
2.1 ASTM Standards:
3.1.4 Additions to the specification and supplementary
B117 Practice for Operating Salt Spray (Fog) Apparatus
requirements, if required.
B280 Specification for Seamless Copper Tube for Air Con-
ditioning and Refrigeration Field Service
4. Materials and Manufacture
D1654 Test Method for Evaluation of Painted or Coated
4.1 In addition to the requirements cited in this
Specimens Subjected to Corrosive Environments
specification, the dehumidifiers covered by this specification
D2247 Practice for Testing Water Resistance of Coatings in
shall be designed, constructed, assembled, and tested to com-
100 % Relative Humidity
ply with UL 474, UL 984, and ASHRAE 15. In the event of
1 3
This specification is under the jurisdiction of ASTM Committee F25 on Ships Available from American Society of Heating, Refrigerating, and Air-
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA
Machinery and Piping Systems. 30329, http://www.ashrae.org.
Current edition approved Sept. 1, 2018. Published October 2018. Originally Available from Uniform Classification Agent, Tariff Publication Officer, Room
approved in 1987. Last previous edition approved in 2014 as F1075 – 97 (2014). 1106, 222 South Riverside Plaza, Chicago, IL 60606.
DOI: 10.1520/F1075-97R18. Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or WA 98607-8542, http://www.ul.com.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from U.S. Government Printing Office, Superintendent of
Standards volume information, refer to the standard’s Document Summary page on Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://
the ASTM website. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1075 − 97 (2018)
differences between any of the requirements of this specifica- 4.9 Provision shall be made in the frame to permit securing
tion and those of other referenced documents, the requirements the cabinet to any appropriate surface.
of this specification shall govern. The manufacturer shall
4.10 Identification plates shall be of a nonferrous metal or
certify compliance with the above standards for equipment
corrosion-resisting steel and shall conform to UL 474.
furnished and shall be cited in the UL Electrical Appliance and
Utilization Equipment product directories.
5. Performance Requirements
4.2 The dehumidifier shall consist of a motor-compressor,
5.1 The unit shall be capable of condensing at least 1.8 gal
condensing unit, dehumidifying coil, air-circulating fan, and
(7 L) of water in 24 h at an ambient temperature of 90°F (32°C)
accessories, all enclosed within a metal cabinet. The dehumidi-
dry bulb and 60 % relative humidity.
fier shall be complete, self-contained with the refrigeration
5.2 The unit shall operate satisfactorily in a maximum
equipment dehydrated, and charged with the necessary operat-
ambient temperature of 110°F (43°C) and a minimum relative
ing quantity of refrigerant and oil. Each unit shall be ready for
humidity of 30 %. Under these conditions of maximal load, the
operation after removal of shipping protection, opening of
temperature rise of the hermetic motor shall not exceed 158°F
valves where provided, and connection to electric power.
(70°C).
4.3 The motor-compressor shall be of the hermetic type and
5.3 The equipment shall operate satisfactorily when inclined
shall consist of a compressor and motor enclosed in a gastight
at an angle of 15° on each side of the vertical, in each of two
shell. The hermetic compressor unit shall conform to UL 984
vertical planes at right angles to each other.
and shall be at least ⁄6 hp. Equipment shall operate on 115-V,
single-phase, 60-cycle alternating current. The unit shall be
6. Other Requirements
protected against overload by a thermal protector built into the
motor. The thermal protection shall be either the manual or
6.1 Design Documentation—A master drawing of a built
automatic reset type.
configuration shall be provided for each of the following:
6.1.1 Complete dehumidifier,
4.4 Piping necessary for the satisfactory operation of the
6.1.2 Motor compressor,
equipment shall be provided by the manufacturer. Tubing shall
be made of copper in accordance with Specification B280. 6.1.3 Condenser, and
Piping connections shall be arranged in such a manner so as not 6.1.4 Fan and cooling coil.
to impair the vibration-isolation properties of absorption-type
6.1.5 Each master drawing shall show outline, mounting,
mounts, where such mounts are provided. Piping shall be
attachment, and connection dimensions, including methods
securely supported to minimize strain and vibration. Piping
and sizes of fastenings and clearances for installation and
connections shall not be made of soft solder.
servicing, plus supplementary data as necessary to permit
installation without suppliers assistance. The drawing shall
4.5 Materials used in the manufacture of the equipment
illustrate design, construction, operation (or function), and
shall be corrosion-resistant or treated to resist corrosion. The
identity of parts. Where acceptance tests are required, the tests
method of manufacture shall not impair physical, structural, or
shall be identified, and approval authority and date shall be
corrosion-resistant properties of the components. Materials,
noted on the drawing. Subassembly drawings shall be provided
coatings, and paint systems shall satisfactorily pass the appli-
to supplement master drawings where desirable.
cable salt spray and humidity test specified in this specification.
6.2 Schematic Drawings:
4.6 Bolts, nuts, studs, pins, screws, and such other fasten-
6.2.1 Schematic drawings shall be provided that include all
ings or fittings shall be of a corrosion-resisting material, or of
mechanical, piping and electrical circuits, and connections.
a material treated in a manner to render it adequately resistant
6.2.2 All symbols used for equipment components or parts
to corrosion. Screws exposed in final assembly shall be
shall be given a piece number and identified in the list of
corrosion-resisting material.
materials with the following information:
4.7 Similar parts, including repair parts, or corresponding
6.2.2.1 Piece number,
apparatus furnished on the same contract or order, or built to
6.2.2.2 Quantity required,
the same drawings, shall be strictly interchangeable without the
6.2.2.3 Descriptive name,
necessity of further machining or hand fitting of any kind.
6.2.2.4 Manufacturer,
4.8 A plastic or other chemically inert container shall be
6.2.2.5 Manufacturer’s model or identifying number,
provided for collecting the condensate. The container shall be
6.2.2.6 Manufacturer’s drawing number, and
of a size and configuration that will fit within the cabinet
6.2.2.7 Weight.
enclosure. The container shall be provided with baffles to
prevent the overflow or spilling of water and shall be readily 6.3 Manuals—Manuals shall be typed in accordance with
removable from the dehumidifier cabinet. A male fitting shall the manufacturer’s commercial practice. Photo views of the
be provided from the container for connection of a 0.375-in. equipment shall be included as part of the general description.
(10-mm) inside diameter flexible rubber tubing for draining the A section shall be provided containing reduced copies of all
condensate (wall thickness 0.125 in. (3 mm)). The rubber drawings required to amplify or illustrate the text including
tubing will not be required to be furnished by the contractor. diagram and assembly drawings.
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1075 − 97 (Reapproved 2014) F1075 − 97 (Reapproved 2018)An American National Standard
Standard Specification for
Dehumidifier, Shipboard, Mechanically Refrigerated, Self-
Contained
This standard is issued under the fixed designation F1075; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers self-contained dehumidifiers using hermetic refrigerant motor-compressors.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 11, of this specification: This standard
does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
B117 Practice for Operating Salt Spray (Fog) Apparatus
B280 Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service
D1654 Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments
D2247 Practice for Testing Water Resistance of Coatings in 100 % Relative Humidity
2.2 ASHRAE Standards:
ASHRAE—15ASHRAE 15 Safety Code for Mechanical Refrigeration
2.3 Offıcial Classification Standards:
Uniform Freight Classification Ratings, Rules, and Regulations
2.4 UL Standards:
UL 474 Dehumidifiers
UL 984 Hermetic Refrigerant Motor—Compressors
2.5 Military Documents:
MIL-S-901 Specification Requirements for Shock Tests, High Impact (H.I.); Shipboard Machinery, Equipment, and Systems
MIL-STD-167-1 Mechanical Vibrations of Shipboard Equipment, (Type I—Environmental and Type II—Internally Excited)
MIL-D-19947 Specification for Dehumidifier, Space, Mechanically Refrigerated, Self-Contained, Naval Shipboard
This specification is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems.
Current edition approved Nov. 1, 2014Sept. 1, 2018. Published November 2014October 2018. Originally approved in 1987. Last previous edition approved in 20082014
as F1075 – 97 (2008).(2014). DOI: 10.1520/F1075-97R14.10.1520/F1075-97R18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA 30329,
http://www.ashrae.org.
Available from Uniform Classification Agent, Tariff Publication Officer, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.
Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas, WA 98607-8542, http://www.ul.com.
Available from U.S. Government Printing Office, Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401,20401-0001,
http://www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1075 − 97 (2018)
3. Ordering Information
3.1 Orders for products under this specification shall include the following information, as necessary, to describe adequately the
desired product:
3.1.1 Title, ASTM designation, and year of issue,
3.1.2 Quantity (number of dehumidifiers),
3.1.3 Certification if required, and
3.1.4 Additions to the specification and supplementary requirements, if required.
4. Materials and Manufacture
4.1 In addition to the requirements cited in this specification, the dehumidifiers covered by this specification shall be designed,
constructed, assembled, and tested to comply with UL 474, UL 984, and ASHRAE Standard 15. 15. In the event of differences
between any of the requirements of this specification and those of other referenced documents, the requirements of this
specification shall govern. The manufacturer shall certify compliance with the above standards for equipment furnished and shall
be cited in the UL Electrical Appliance and Utilization Equipment product directories.
4.2 The dehumidifier shall consist of a motor-compressor, condensing unit, dehumidifying coil, air-circulating fan, and
accessories, all enclosed within a metal cabinet. The dehumidifier shall be complete, self-contained with the refrigeration
equipment dehydrated, and charged with the necessary operating quantity of refrigerant and oil. Each unit shall be ready for
operation after removal of shipping protection, opening of valves where provided, and connection to electric power.
4.3 The motor-compressor shall be of the hermetic type and shall consist of a compressor and motor enclosed in a gastight shell.
The hermetic compressor unit shall conform to UL 984 and shall be at least ⁄6 hp. Equipment shall operate on 115-V, single-phase,
60-cycle alternating current. The unit shall be protected against overload by a thermal protector built into the motor. The thermal
protection shall be either the manual or automatic reset type.
4.4 Piping necessary for the satisfactory operation of the equipment shall be provided by the manufacturer. Tubing shall be made
of copper in accordance with Specification B280. Piping connections shall be arranged in such a manner so as not to impair the
vibration-isolation properties of absorption-type mounts, where such mounts are provided. Piping shall be securely supported to
minimize strain and vibration. Piping connections shall not be made of soft solder.
4.5 Materials used in the manufacture of the equipment shall be corrosion-resistant or treated to resist corrosion. The method
of manufacture shall not impair physical, structural, or corrosion-resistant properties of the components. Materials, coatings, and
paint systems shall satisfactorily pass the applicable salt spray and humidity test specified in this specification.
4.6 Bolts, nuts, studs, pins, screws, and such other fastenings or fittings shall be of a corrosion-resisting material, or of a material
treated in a manner to render it adequately resistant to corrosion. Screws exposed in final assembly shall be corrosion-resisting
material.
4.7 Similar parts, including repair parts, or corresponding apparatus furnished on the same contract or order, or built to the same
drawings, shall be strictly interchangeable without the necessity of further machining or hand fitting of any kind.
4.8 A plastic or other chemically inert container shall be provided for collecting the condensate. The container shall be of a size
and configuration that will fit within the cabinet enclosure. The container shall be provided with baffles to prevent the overflow
or spilling of water and shall be readily removable from the dehumidifier cabinet. A male fitting shall be provided from the
container for connection of a 0.375-in. (10-mm) inside diameter flexible rubber tubing for draining the condensate (wall thickness
0.125 in. (3 mm)). The rubber tubing will not be required to be furnished by the contractor.
4.9 Provision shall be made in the frame to permit securing the cabinet to any appropriate surface.
4.10 Identification plates shall be of a nonferrous metal or corrosion-resisting steel and shall conform to UL 474.
5. Performance Requirements
5.1 The unit shall be capable of condensing at least 1.8 gal (7 L) of water in 24 h at an ambient temperature of 90°F (32°C)
dry bulb and 60 % relative humidity.
5.2 The unit shall operate satisfactorily in a maximum ambient temperature of 110°F (43°C) and a minimum relative humidity
of 30 %. Under these conditions of maximal load, the temperature rise of the hermetic motor shall not exceed 158°F (70°C).
5.3 The equipment shall operate satisfactorily when inclined at an angle of 15° on each side of the vertical, in each of two
vertical planes at right angles to each other.
6. Other Requirements
6.1 Design Documentation—A master drawing of a built configuration shall be provided for each of the following:
6.1.1 Complete dehumidifier,
6.1.2 Motor compressor,
F1075 − 97 (2018)
6.1.3 Condenser, and
6.1.4 Fan and cooling coil.
6.1.5 Each master drawing shall show outline, mounting, attachment, and connection dimensions, including methods and sizes
of fastenings and clearances for installation and servicing, plus supplementary data as necessary to permit installation without
suppliers assistance. The drawing shall illustrate design, construction, operation (or function), and identity of parts. Where
acceptance tests are required, the tests shall be identified, and approval authority and date shall be noted on the drawing.
Subassembly drawings shall be provided to supplement master drawings where desirable.
6.2 Schematic Drawings:
6.2.1 Schematic drawings shall be provided that include all mechanical, piping and electrical circuits, and connections.
6.2.2 All symbols used for equipment components or parts shall be given a piece number and identified in the list of materials
with the following information:
6.2.2.1 Piece number,
6.2.2.2 Quantity required,
6.2.2.3 Descriptive name,
6.2.2.4 Manufacturer,
6.2.2.5 Manufacturer’s model or identifying number,
6.2.2.6 Manufacturer’s drawing number, and
6.2.2.7 Weight.
6.3 Manuals—Manuals shall be typed in accordance with the manufacturer’s commercial practice. Photo
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.