I
iNON-MEASUREMENT Sensitive
HIL-U-17691D
23 May 1988
SUPERSEDING
HIL-U-17691C
7 January 1980
,
MILITARY SPECIFICATION
UNIT HEATER, AIR-CIRCULATING,
STEAH - HOT WATER
This specification is approved for use by all Departments and
Agencies of the Department of Defense.
1.1 ~. This specification covers unit air heaters using steam or hot
water as the heating medium.
1.2 Classification. The unit heaters shal 1 be of the following types and
classes as specified (see 6.2 and 6.5):
Type I - Propeller fan.
Type 11 - Centrifugal fan.
Class 1 - Steam heater.
Class 2 - Hot water heater.
2.
APPLICABLE DOCUMENTS
2.1 Government documents.
2.1.1 Specifications and standards. The following specifications and
standards form a part of this specification to the extent specified herein.
Unless otherwise specified, the issue of these documents shal 1 be those
listed in the issue of the Department of Oefense Index of Specifications and
Standards (DODISS) and supplement thereto, cited in the solicitation.
\Beneficial conwnents (recommendations, additions,
deletions) and any pertinent
[data which may be of use in improving this document should be addressed to: I
lConwnanding Officer (Code 156), Naval Construction Battal ion Center, Port \
lHueneme, CA 93043-5000, by using the self-addressed Standardization
I
I Document Improvement Proposal (DD Form 1426) appearing at the end of this I
I document or by letter.
I
AMSC N/A FSC
4520
I
DISTRIBUTION STATEMENT A.
Approved for public release; distribution is
●
unlimited.
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