DH-A-35B Spot Cooler, 3500 W
Refrigerant, not evaporative: the spot coolers on this page use a compressor with refrigerant (R22/R410A). They are portable air conditioners for a single spot, not evaporative coolers, and they are described as such throughout this site.
The DH-A-35B steps up from the 27B with more cooling and more airflow, in a slightly taller body, for a larger spot or a warmer corner.
| Specification | DH-A-35B |
|---|---|
| Cooling capacity | 3500 W (11935 BTU) |
| Airflow | 550 m3/h |
| Input power | 1200 W |
| Current | 5.5 A |
| Voltage | 220V / 50Hz |
| Working temperature | 16–45 °C |
| Water tank | 6 L |
| Size | 460 x 465 x 1065 mm |
| Weight | 65 kg |
| Features | 360° casters, plug-and-use, washable filter |
The 35B is the step to take when the 27B's spot is bigger than one seated person — a small team bay, a machine with real heat output, a room that holds warmth through the day. The same family rules apply: 220 volts, 16 to 45 degrees working range, washable filter, and a duct variant choice (single, double or triple) that changes the installation rather than the capacity.
Running the numbers
At 1200 watts input, 8 hours a day is 9.6 kilowatt-hours by multiplication of the stated power figure. At 5.5 amps, the circuit check is still straightforward, but it belongs in the inquiry, because spot coolers move and circuits differ by position. The step from the 27B to the 35B buys about a third more cooling and airflow for about 150 watts more input — a favourable trade on paper, and worth it when the spot is genuinely bigger than one seated person. When the spot is one seated person, the smaller unit is the honest buy, and the extra capacity is money spent cooling air nobody occupies.
What to put in your inquiry for this model
- DH-A-35B, and the duct variant: single, double or triple.
- The spot and its size: one person, a small team bay, or a machine with real heat output.
- The circuit at the exact position.
Siting the DH-A-35B
Site this unit for the bay, not the building. The 35B suits a small team bay or a machine with real heat output, and its discharge should cover that bay's occupied area, not the corridor beside it. Check the circuit where the unit will actually stand, and check the warm-air path for the duct variant you chose: a single-duct unit needs somewhere for its warm air to go that is not the bay itself, and a triple-duct unit needs its routes planned, not improvised. The most common siting mistake with a mid-size spot cooler is treating it like a small evaporative unit and parking it against a wall. It is a refrigerant machine cooling a spot. Park it at the spot.
Keeping the DH-A-35B running
The maintenance routine for the 35B is the same shape as for the smaller unit, with one difference that follows from its size: it serves a bay, not a person, so its filter collects what a bay produces — more dust, more airborne work, more reason to clean on a schedule rather than on appearance. Wash the filter regularly, empty the condensate tank before it fills, and check the casters whenever the unit moves, because a bay unit that cannot roll to the next bay is a fixed unit with extra steps. Assign the routine to a named person before delivery, and the unit will cool the bay it was bought for, for as long as the bay needs it.
Before ordering, confirm: the exact model and voltage for your site, the airflow and size you need, MOQ, lead time, and warranty. This page lists only what the source material verifies; anything not listed here is a question to ask, not a specification to assume.
Request a mobile cooling layout
Send your space size, heat source, and voltage, and ask for a layout using the equipment families on this page. Before payment, confirm MOQ, lead time, voltage, and warranty for your order.