KIB4221 | 42,000 BTU (3.5-ton) | 230V / 40 Amp | Single Phase


List Price $7795.00

42,000 btuh (3.5-ton)

Uses CK-42 Ceiling Kit to Exhaust Heat



  • Super Small

  • Full Featured

  • Internal Condensate Pump


The Model KIB4221 (nominal 3.5-ton or 42,000 BTU) is the smallest unit possible in size and capacity in The Iceberg Series, KwiKool’s Flagship Line of portables for both primary and backup air conditioning. With its full-featured design, high sensible cooling and balanced air system, the KIB4221 is the perfect solution for cooling server rooms. The Iceberg Series is quick and easy with its “plug and play” technology and tops the competition in its small size, big performance and tons of features. From its hi-tech microprocessor controls and self-diagnostics, to the long list of standard features (most of which are not even available in other brands), the Iceberg Series out performs, out lasts, and out features other portables and all at a price that is comparable to the no frills products that are available.

All Iceberg Series units come standard with our exclusive I/O Integral Condenser Dual Ducting that provides isolated and balanced air pressure within the space for maximum cooling efficiency. The condenser utilizes THD, KwiKool’s exclusive Twin Hyperdrive Technology. The KIB4221 has automatic restart after power failure and runs on a 230-volt/40-amp Single-Phase circuit, which must be installed by a qualified electrician. The unit comes with an internal high lift condensate pump and a 5-gallon exterior condensate tank with float activated unit cut off for short term use.

And, KwiKool products are proudly MADE IN AMERICA.


Cooling Capacity

BTU/hr @ 95F at 60% RH – 42,000 (3.5-ton)

Compressor Data

Compressor Type – Hermetic Reciprocating
Operating Temperatures – 60-110 F 50%RH
Refrigerant – 407C

Fan Data Evaporator

Fan Type (Centrifugal) – Direct Drive
Air Flow (CFM) – 1400/3 Speed
Supply Air Device – Adjustable Vent
Supply Air Chute Kit (optional) – 2 – 8″ Dia. x 21″ Length

Fan Data Condenser

I/O Integral Condenser – Balanced Air Flow
Fan Type (Centrifugal) – Direct Drive
Air Flow (CFM) – 2100
Condenser Duct Specs (optional) – 2 – 16″ Dia. x 8′ Length
Condenser Duct Max. Length – 25′

Electrical Data

Power Supply (Volts) – 208/230 – Single Phase
Current Consumption (Amps) – 27.39 / 24.9
Power Consumption (kW) – 5.8
Maximum Circuit Breaker (Amps) – 40
Recommended Breaker Size (Amps) – 40 (208) / 30 (230)
Minimum Circuit Ampacity (Amps) – 30.4
Min./Max. Voltage – 195-225/210-250
Power Cord Gauge/Length – 10 AWG /10′
Plug Configuration – Field Supplied

Dimensional Data

Width x Depth x Height (Inches) – 22.325″ x 44″ x 49″
Weight (Lbs.) – 409
Shipping Weight (Lbs.) – 459
Ceiling Kit Weight (Lbs.) – 50
Shipping Weight w/ Ceiling Kit – 569

Safety Device Data

Compressor Overload – Internal
Fan Motor Overload – Automatic Internal
Evaporator Freeze Protection – Hot Gas Bypass
High Pressure Switch – Manual
Low Pressure Switch – Automatic
Compressor Short Cycle – Yes
Automatic Restart – Yes
Thermostat Type – Microprocessor/Digital
Condensate Pump Overflow – Yes
Condensate Tank Overflow – Yes

Ceiling Kit | CK-42 | $450.00

The CK-42 is the ceiling kit for the Iceberg Series and includes two (2) 16″x 8’ ducts, 2 flanges with fasteners for mounting to the unit, clamps necessary for duct attachment and two (2) ceiling panels with one (1) air deflector. (Ceiling Kit shown on KIB3021)

CK-24 Ceiling Kit Parts

Air Chute Kit | KDC-42 | $310.00

The KDC-42 is the Air Chute kit for the Iceberg Series and includes two (2)  8″ x 21″ flexible Chutes, an air housing with 8″ duct collars and clamps and necessary hardware to install your KDC to the the unit.

KDC-42 Air Chute Kit Parts  KDC-42 Air Chute Kit Assembled

Condensate Tank | TANK15 | $225.00

The TANK15 is a 15 gallon condensate tank with a float assembly.


Flange/Collar | DCR-16" | $38.22

The DCR-16″ is a 16″ flange/collar.


Return Air Door | RA-42| $300.00

The RA-42 is a Return Air Door with a 16″ Flange/Collar. This door can replace the Cold-Air Return door and used with ducting on the KIB models.

(picture shown is of RA-120 with a 20″ flange/collar)