Attachment 5 HEFP SEP Design Alert 7.pdf

HEFP/10NA5G/10DEC2021

HEFP SEP (SOCAMES 6) Design Alert 7

There are specific circumstances when construction of a conditioned Telecommunication Room (TR) is infeasible or impractical in non-clinical buildings such as engineering/maintenance buildings, warehouses, temporary modular trailers and quarters that were converted to administrative space. In cases where existing space, structural or other constraints do not practically allow for construction of a TR, the use of a Telecommunication Enclosure (TE) is appropriate.

HEFP SEP has seen a considerable increase in variance requests to deviate from the 80 square foot TR space standard as defined in the Infrastructure Standards for Telecommunications Spaces (ISTS). The variance requests specifically address low use, non-clinical TRs where expansion or new construction are not viable solutions due to space and/or environmental constraints.

The site should make every reasonable effort to comply with the current ISTS standard for all TRs in non-clinical buildings. However, where space and/or environmental constraints cannot support a new TR, both a Standard TE and Non-Standard TE are available for consideration under the conditions described below.

A Variance is NOT REQUIRED for a STANDARD TE (fan-cooled) if all the following criteria are met:

1. Space Classification: The space is one of the following:

a) Parking structures

b) Technical spaces such as warehouses, kitchens, laundries, mechanical/electrical plant buildings, chiller or boiler plants, garages, and paint shops

c) Historical quarters converted to administrative use

d) Buildings with no VA staffing presence and no requirements for connectivity to the VA

LAN or guest Wi-Fi

e) Temporary modular trailers. Temporary buildings and trailers must be validated as temporary, with a planned removal date and no history of previous deferred or cancelled removal plans.

Problem

Background

Solution

HEFP SEP (SOCAMES 6) Design Alert 7

2. Usage: Usage is limited to a maximum of 96 Work Area Outlets (WAOs). Each data jack in a workspace telecommunications outlet, wired back to the patch panels in the TE, is considered a WAO for these purposes. Where 1-48 WAOs are planned, a 12RU (half-height) standardized TE is used. Where 49-96 WAOs are planned, a 26RU (full height) standardized TE is used.

3. Environment: Spaces meet the environmental envelope conditions for a TR, as described in Figure 19 and Table 24 of the Infrastructure Standard for Telecommunications Spaces.

Ambient air conditions in the space are between 41°F-95°F dry bulb, 8-80% RH, and dew point less than 82.4°F, measured at the intake point of the TE.

Standard TE’s (or equal) are provided below:

12RU - https://www.chatsworth.com/en-us/products/cabinets-enclosures-containment/wall-mount-cabinets/swing-frame/cube-it-wall-mount-cabinet/11900-e24

26RU - https://www.chatsworth.com/en-us/products/cabinets-enclosures-containment/wall-mount-cabinets/swing-frame/cube-it-wall-mount-cabinet/12419-e48

If all the above criteria are met, except for paragraph 3. Environment, a NON-STANDARD (Environmentally Conditioned) TE may be considered, and a Variance is REQUIRED. To request a NON-STANDARD TE Variance:

1. Determine if another space in the building meets the environmental and physical security criteria for the installation of a standardized TE. If so, a standardized TE shall be relocated to the environmentally appropriate space in the building.

2. If no other spaces in the building meet the environmental and physical security criteria, submit a Variance request to DCIE for installation of a non-standard (environmentally conditioned) TE. Select which non-standard TE is proposed for use and submit the installation plan, showing the location on an as-built drawing.

3. A sampling of vendors that may meet the intent of a non-standard (environmentally conditioned) TE solution include:

a. Liebert (Vertiv) MCR Mini Computer Room Enclosure https://www.vertiv.com/en-us/products-catalog/facilities-enclosures-and-racks/integrated-solutions/mcr---mini-computer-room-enclosure/

b. Hoffman Spectracool – A side-mount A/C unit capable of attaching to many common manufacturer’s cabinets (comes in a variety of sizes) https://hoffman.nvent.com/sites/g/files/hdkjer316/files/acquiadam/2021- 05/Spec-00728.pdf?asset_type=Spec

HEFP SEP (SOCAMES 6) Design Alert 7

c. EIC Solutions Protector Series, Wall-Mount Enclosure S723616 Wall-mount AC Enclosure - 72"H x 36"W x 16"D with EIC Solutions CB Series, Compressor-Based, Side-Mount, Hazardous Location Enclosure CBIQ6000V16XP2 - 6,000 BTU Hazardous Location Air Conditioner https://www.eicsolutions.com/protector-series-air-conditioned-electronic-enclosures/ and https://www.eicsolutions.com/product/cbiq6000v16xp2/

Variance request information is in the Infrastructure Standard for Telecommunication Spaces (ISTS) standard, Section 1.3.1 and Appendix A.

Once approved, the designer of record MUST incorporate the approved TE into the design documents.

Notes