3.5E Pre-env Checklist

Updated
  • Updated on Jan 15, 2026
  • Published on Dec 2, 2025
  • 1 minute(s) read
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This table summarizes the requirements for space, power, network, water supply, drainage, and consumables before you deploy the Series 3.5E kiosk.

Item

Spec

Requirements & Checklist

Confirmation

Space

Installation Space

  • Width ≥ 147 inch (optimum: ≥ 151 inch)

  • Depth ≥ 86 inch (optimum: ≥ 89 inch)

  • Height ≥ 102 inches

    If no COFFEE signage, height ≥ 95 inch

Environmental Conditions

  • Temperature: 17-28°C

  • Relative humidity: 40-70% RH

Confirmed:

  • YES

  • NO

Power

  • 1 socket: NEMA 14-50

    Kiosk voltage & power: 208-240 volts | 50 amps | 10kw

Installed & Tested:

  • YES

  • NO

Network

or

  • 5G wireless SIM card ( recommended, provided by KioSoft)

    or

  • Ethernet LAN port (for reliable network backup connection)

Installed & Tested:

  • YES

  • NO

Water Supply

Water Speed and Control

  • John Guest 3/8 inch OD tube push to connect fitting end with shut-off valve

  • Water pressure: 2.5-3.5 bar (32.3-51 psi)

  • Flow rate: ≥ 3.4 LPM (0.9 GPM)

Water Quality Requirements

  • Total hardness: < 5-6.7° dGH (89-120ppm)

  • Carbonate hardness: < 6° dKH (107ppm)

  • PH value: 7.0-7.2

We recommend you investigate your water hardness to determine if water filtration and softening are necessary. If you have any questions about your water needs, let us know and we will help you find the right solution.

Installed & Tested:

  • YES

  • NO

Drainage

Gravity waste line is within 36” of machine will be prepared by KioSoft (int Φ0.63” (16mm))

Drainage connection requirement:

  • [Option 1] Connection hard pipe: ext Φ: 0.55” - 0.63” (14 -16mm）(optimum: 0.63” (16mm))

  • [Option 2] Connection hole: int Φ: ≥ 0.63” (16mm）

Drainage pipe requirement:

  • Gap between drain outlet and liquid level to prevent possible backflow: ≥ 4.”

  • Rated to withstand 200 ℉ (93℃) liquid

Installed & Tested:

  • YES

  • NO

Consumables

  • ≥ 4 lbs of each coffee bean type (e.g., regular or decaf).

  • ≥ 2 gal of each milk (e.g., milk or oat milk)

  • ≥ 2 lbs of each powder (e.g., hot chocolate, sugar, matcha ...)

  • ≥ 25 fl. oz or 1 bottle of each syrup

  • Carbon Dioxide tank with pressure reducing valve

    The CO2 inlet pressure to the machine must be set at 3.5-4 bar (51-58psi ) and to obtain optimal carbonation it must be 1 bar higher than the water inlet pressure to the system.

Prepared:

  • YES

  • NO

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