Ice machine for an office (break room)

An office break room is a peak-window load, not a restaurant day. People take ice at lunch and again when a conference room fills. The machine may sit from 6 p.m. to 8 a.m. Buying a 400 lb modular head for a pantry that scoops 40 lb between 11:30 and 13:00, or parking a 27 lb top-hat in a 75-person kitchen, is how the bin is empty when the all-hands starts.

This is a planning page from published application factors and current OEM sheets. It is not a dealer quote, not a review score, and not a health-code opinion. Confirm electrical, plumbing, clearance, and sanitation with the people who inspect the building.

Published lb/employee factors

Application charts treat office ice as pounds per employee per day, not pounds per restaurant cover. Those are dealer/application rules of thumb, not a manufacturer warranty and not a lab measurement.

The VenueIce sizing table already starts office break rooms at about 1.5 lb per employee and notes that many offices are far lower. Use 1 lb when the source that matches the pantry is HVACDirect’s office line — water-cooler cups, no catering. Use 1.5 lb when the source is Kitchen Spot or GoFoodservice’s cube line. Use 2 lb only if the ice is flake or cubelet and you are on GoFoodservice’s office line. Add Kitchen Spot’s +20% when you want their published reserve. Do not copy a church fellowship-hall 2 lb/person event factor into a weekday pantry.

Worked 25-person office

Same peak-day method as the sizing page: count the people who will use the machine, pick a published factor, add the reserve the source uses.

Weekday pantry, iced water and soda, no cafeteria, no outdoor picnic.

• Headcount: 25
• HVACDirect office line (1 lb): 25 × 1 = 25 lb
• Kitchen Spot / GoFoodservice cube line (1.5 lb): 25 × 1.5 = 37.5 lb
• Kitchen Spot +20% reserve: about 45 lb
• GoFoodservice cubelet line (2 lb): 25 × 2 = 50 lb; applying Kitchen Spot’s +20% on top of that is 60 lb — two different charts stacked; label it if you do it

That 25–45 lb cube band is a compact undercounter job. A Hoshizaki AM-50BAK is 54 lb “approximately” on the current product page with a 27 lb bin. A Scotsman CU0415 is 60 / 40 lb with a 36 lb bin. A Hoshizaki KM-81BAK is 98 / 76 lb with a 38 lb bin. The 24-hour column covers a 25-person HVACDirect or Kitchen Spot day. The bin is the lunch constraint — see the peak-window section.

Meeting overflow is extra. Atlantic’s office line is “measure cups.” If a 12-person client lunch uses Kitchen Spot’s hotel catering 1 lb/person or general catering 1.5 lb/person, that is 12–18 lb in the room that noon, not another 1.5 lb × 25. Add it as its own line. The homepage’s 50–150 lb/day plus meeting overflow band is this 25-person pantry after a reserve and a meeting, not a reason to jump to a 400 lb modular head.

Worked 75-person office

Same pantry math, larger headcount. Still one break room, still a lunch spike.

• Headcount: 75
• HVACDirect office line: 75 × 1 = 75 lb
• Kitchen Spot / GoFoodservice cube line: 75 × 1.5 = 112.5 lb
• Kitchen Spot +20%: about 135 lb
• GoFoodservice cubelet line: 75 × 2 = 150 lb; +20% on that stack → 180 lb
• A 20-person catered lunch in a conference room (Kitchen Spot catering 1–1.5 lb): +20–30 lb that window

135 lb after Kitchen Spot’s reserve sits at the top of the homepage 50–150 lb band. A Hoshizaki KM-161BAK is 156 lb on the current product page with a 78 lb bin. A Manitowoc UYF-0140A is 137 / 100 lb with a 90 lb bin. A Manitowoc UYF-0190A is 193 / 140 lb in the same 90 lb cabinet — more make, not more stored ice at 11:30.

If two floors share one pantry, or if Facilities bags ice for a 100-person town hall, you have left “break room” and entered banquet math. Use the church / hotel banquet lines and size a bin, not another undercounter.

The lunch-and-meeting peak window

A 24-hour rating is not a bucket. Break-room ice is taken in a short window — lunch, then afternoon meetings — not as 3 lb every hour for 24 hours.

Take the 75-person Kitchen Spot day (112.5 lb before reserve). If even half of that is scooped between 11:30 and 13:00:

• Lunch pull: about 56 lb in 90 minutes
• KM-81BAK stored ice: 38 lb. Make during the window at the sheet’s 76 lb @ 90/70 is 76 ÷ 24 ≈ 3.2 lb/hour × 1.5 h ≈ 5 lb. On paper: ~43 lb against a 56 lb pull.
• UYF-0140A stored ice: 90 lb. Make during the window at 100 lb @ 90/70 is 100 ÷ 24 ≈ 4.2 lb/hour × 1.5 h ≈ 6 lb. On paper: ~96 lb against the same 56 lb pull.

The bin, not the “up to 98 lb” headline, is the lunch constraint. A 25-person pantry that only scoops 15 lb at noon can live with a 27–38 lb bin. A 75-person pantry that dumps the bin at 12:10 wants the 78–90 lb class — or a second cabinet on another floor.

That hourly split (24-hour rating ÷ 24) is arithmetic, not an OEM hourly guarantee. Harvest is cyclic. A boxed-in closet will not even give you the 90/70 column. See how to size and air-cooled vs water-cooled.

Why undercounter / compact self-contained usually wins

HVACDirect’s own install table calls undercounter machines ideal for offices. Hoshizaki’s current AM-50BAK and C-80BAK pages say hotel suite / office breakroom / kitchen. The KM-81BAK and KM-161BAK pages say small bars, hotel lobbies, and office break rooms. Those are OEM application lines, not a VenueIce review.

Undercounter is one 115 V cabinet with a built-in bin. It fits a shared pantry if the sheet’s height, front-breathing clearance, and drain work. No separate bin SKU. The bin, not the 24-hour rating, is the lunch limit.

Compact top-hat / cubelet (AM-50BAK, C-80BAK) is the same idea, shorter: under 34″ on those pages, front-in / front-out, UL outdoor stated on the pages. Hoshizaki wrote “office breakroom” on both.

Modular head + bin makes sense when you need more stored ice than a 90 lb undercounter bin — a cafeteria line, a weekly all-hands, or Facilities bagging for several floors. Production and storage are separate SKUs. Order the bin (and any top kit) from the head’s compatibility list. The smallest modular cube heads in this directory are the 400–550 lb class (C0330MA-1, CIM0430A, IYT0450A, KM-520MAJ). That is a kitchen plant, often hardwired, not a pantry plug-in. Form-factor background: undercounter vs modular vs countertop.

Dispenser: a Scotsman HID525 is a sealed 25 lb hopper that keeps making ice. Use it when people fill a cup or bottle at a wall and you do not want an open scoop bin in a shared kitchen. Do not treat the 25 lb hopper as the town-hall ice chest. HID families are also sold into healthcare; this page is about offices. Patient-ice rules are out of scope.

Cube ice (crescent, half-dice, medium cube) is the usual drink-station ice. Cubelet / nugget is chewable and popular at self-serve; GoFoodservice’s office cubelet line is the 2 lb factor above. Flake is a food-display ice. See cube vs half-dice vs nugget vs flake.

Current undercounters (OEM sheets)

Figures are manufacturer ratings. Full citations live on each directory page. Street prices omitted. These cabinets are break-room tools unless you also have a dump bin or bagged ice for events.

AM-50BAK, C-80BAK, KM-81BAK, and KM-161BAK are R290 on those current Hoshizaki pages. CU0415 is R290 on the current Scotsman page.

When a small modular + bin might make sense

Stay on an undercounter unless one of these is true:

• Stored ice at 11:30 has to exceed ~90 lb (the largest undercounter bin in this directory) and you will actually use it that day.
• A cafeteria or catered all-hands is on the same plant. That is banquet math — church / hotel F&B — not 1 lb per desk.
• Several floors need ice and Facilities will not run a cabinet on each floor. One head plus a large bin is a transport job, not a quieter job.

Current 400–550 lb modular cube heads already in this directory (head only; pair with a bin from the compatibility list):

A 200 lb-class head is not in this directory today. Do not assume a 22″ head drops onto an arbitrary bin without the top kit on the current sheet.

Power, drain, air, filter, noise, who cleans

Many office pantries are a shared closet: one 115 V receptacle, a sink, a refrigerator, and a door that closes. Read the sheet before Facilities orders the cabinet.

• 115 V cord-and-plug on the compact undercounters above (AM-50, C-80, CU0415, KM-81, KM-161, UYF-0140/0190, HID525). A KM-520MAJ is a hardwired 115 V / 20 A-class head. Two cabinets on one pantry circuit is an electrician question.
• Drain. Gravity to a nearby sink tail or floor drain if the sheet’s fall and fitting work (AM-50BAK / C-80BAK: 1/2″ FPT outlet on the current pages; KM-81 / KM-161: 3/4″ FPT). Hoshizaki accessory HS-5061 is the listed drain pump on AM/C/KM compact units. Melt water is not optional. A cabinet with no drain is not a commercial ice machine install.
• Air / closet. Front-in / front-out cabinets (AM-50BAK, C-80BAK, KM-81BAK, KM-161BAK, CU0415) exist for tight holes. They still reject heat into the room: AM-50BAK / C-80BAK 1,400 BTU/h; CU0415 1,500; KM-81BAK 1,800; KM-161BAK 2,800; UYF family sheet 2,150 average / 2,600 peak. A closed break-room closet in August is not a 70/50 lab. A boxed-in louver is a derate. Use the 90/70 column if you have it. See air-cooled vs water-cooled.
• Water-cooled condensers dump heat into condenser water. Many cities restrict once-through cooling. Do not pick water-cooled to hide a closet install without a mechanical reason.
• Filter. Ice-machine filter, not “the building’s drinking fountain cartridge.” Hoshizaki points at H9320-family systems on the AM-50 page. See filters and descalers.
• Water pressure. Hoshizaki compact and KM pages list about 10–113 psig. Manitowoc NEO copy on the directory pages lists 20–80 psi. Too little pressure and harvest fails.
• Noise. We do not have a published dB figure on the OEM HTML pages cited below. Harvest and the condenser are audible. A closet that shares a wall with a conference room is a facilities question, not a number we invent.
• Who cleans it. Someone on the work order — Facilities, a porter, or the office manager — has to follow the clean/sanitize interval on the machine sheet. We are not writing that interval here. Skipped filters and skipped descales are how a 90/70 machine becomes a 40 lb machine. See filters and descalers.
• Do not use a household countertop nugget machine as if it were NSF commercial equipment unless the listing says it is.

What this page is not

• Not a code letter. NSF marks and manuals are on the sheets. We do not say an install “meets” a health department.
• Not a review. No scores, no invented “we installed N of these.”
• Not a price list.
• Not a church or hotel guide. Event-bin and guest-floor dispenser math live on those pages.
• Not healthcare. Dispenser families sold into hospitals are out of scope here.

Sources

1. HVACDirect, Commercial Ice Machine Buying Guide — office 1 lb per employee; undercounter “ideal for offices, cafes, and smaller establishments with constrained space” (retrieved 2026-09-02).
2. The Kitchen Spot, Ice Machines: Sizing for Application — office use 1.5 lb per employee; table marked +20% for safe margin of error; hotel catering 1 lb/person; general catering 1.5 lb/person.
3. GoFoodservice, Commercial Ice Machine Guide — office cubed ice 1.5 lb per employee; office flaked / cubelet ice 2 lb per employee.
4. Atlantic Store Equipment, Commercial Ice Machine Sizing Guide — office or breakroom: measure cups or users per peak day; account for meetings, shifts, and refill behavior; undercounter listed as useful in offices.
5. Hoshizaki, AM-50BAK product page — 54 lb, 27 lb bin, 14.875″ × 22.625″ × 33.5″, 115 V, 2.0 A, 5-15P, R290, 1,400 BTU/h; “hotel suite, office breakroom, or kitchen” (retrieved 2026-09-02).
6. Hoshizaki, C-80BAK product page — 92 lb, 27 lb bin, same cabinet family, 115 V, 2.8 A, 1,400 BTU/h; same office-breakroom sentence (retrieved 2026-09-02).
7. Hoshizaki, KM-81BAK product page — 98 lb, 38 lb bin, 17.75″ × 24″ × 39″, 115 V, 2.4 A; “office break rooms” (retrieved 2026-09-02).
8. Hoshizaki, KM-161BAK product page — 156 lb, 78 lb bin, 23.75″ × 28″ × 39″, 115 V, 3.5 A; “office break rooms” (retrieved 2026-09-02).
9. Scotsman, CU0415 product page — 60 / 40 lb, 36 lb bin, 15″ × 24″ × 38″, 115 V, 15 A max fuse, 5-15P, R290, 1,500 BTU/h (retrieved 2026-09-02).
10. Manitowoc, NEO 140/190 family sheet — UYF-0140A 137 / 100 lb; UYF-0190A 193 / 140 lb; 90 lb bin; 26″ × 28.50″ × 38.50″ on 6″ legs; 115 V, 5 A / 6 A, 15 A max fuse, 6 ft 5-15P (retrieved 2026-09-02).
11. Scotsman, HID525 product page — 500 / 380 lb, 25 lb hopper, 115 V, 5-15P (retrieved 2026-09-02).
12. Directory pages already citing the same OEM language: AM-50BAK, C-80BAK, CU0415, KM-81BAK, KM-161BAK, UYF-0140A, UYF-0190A, ICEU150HA, KM-520MAJ, IYT0450A, CIM0430A, C0330MA-1, HID525.

If two sheets disagree, we say so and prefer the latest OEM page or PDF.