Kaidi GUM Series Large Ceiling-Mounted Evaporators with Electric Defrost
Go kalles this summer with this vintage navy and white striped v-neck t-shirt from the Nike. Perfect for pairing with denim and white kicks for a stylish kalles vibe.
Kaidi GUM Series Large Ceiling-Mounted Evaporators with Electric Defrost
Product Description
Kaidi GUM Series Large Ceiling-Mounted Evaporators
The Kaidi GUM Series consists of large-capacity ceiling-mounted evaporators designed for industrial cold rooms, frozen-storage warehouses and other refrigeration facilities requiring high cooling capacity and long air throw.
The series uses 630 mm or 710 mm high-static-pressure external-rotor fans. Depending on the selected model, units are available with two, three or four fans.
Three fin-spacing configurations—4.5 mm, 6.0 mm and 9.0 mm—allow the evaporator to be selected according to the required room temperature, humidity level and expected frost formation.
All models supplied on this product page are equipped with electric defrost. Stainless-steel heating elements are evenly installed through the evaporator coil and drain-pan area to provide uniform defrosting and reliable low-temperature operation.
As a Kaidi distributor, we supply the GUMDL, GUMDD and GUMDJ ranges. Model-selection support is available according to cooling load, room temperature, refrigerant, power supply and installation requirements.
Key Features
- Large-capacity ceiling-mounted evaporator for industrial cold rooms
- Electric defrost included as standard
- Stainless-steel heaters installed in the coil and drain-pan area
- Uniform defrosting for low-temperature applications
- 630 mm or 710 mm high-static-pressure external-rotor fans
- Two-, three- or four-fan configurations
- Long air throw for large and high-ceiling cold-storage spaces
- Powder-coated galvanized-steel casing as standard
- Optional aluminium or stainless-steel casing
- Internally grooved heat-exchange tubes
- Hydrophilic double-sine-wave aluminium fins
- 4.5 mm, 6.0 mm and 9.0 mm fin-spacing options
- Low-pressure-drop Venturi-type refrigerant distributor
- IP65 waterproof electrical junction box
- Standard 1/4-inch pressure access port
- Optional EC energy-saving fan motors
- Optional air-throw extension kit
- Factory cleaned, inspected and pressure-tested at 28 bar
Technical Overview
| Specification | Series Data |
|---|---|
| Product type | Large ceiling-mounted evaporator / unit cooler |
| Installation | Ceiling-mounted |
| Available series | GUMDL, GUMDD and GUMDJ |
| Defrost method | Electric defrost |
| Coil defrost | Stainless-steel electric heaters |
| Drain-pan defrost | Electric heaters |
| Fan diameter | 630 mm or 710 mm |
| Fan quantity | 2, 3 or 4 |
| Air volume | Approximately 23,500–60,000 m³/h |
| Air throw | Approximately 30–42 m |
| Heat-exchange area | Approximately 96.5–493.3 m² |
| Fin spacing | 4.5 mm, 6.0 mm or 9.0 mm |
| Fan motor supply | 3-phase, 380 V, 50 Hz – catalogue standard |
| Electric heater supply | 1-phase, 220 V, 50 Hz – catalogue standard |
| Total fan motor power | Approximately 3.8–8.7 kW |
| Refrigerants | R404A, R507A, R448A, R449A, R134a and R22 |
| Unit weight | Approximately 230–510 kg |
| Unit length | Approximately 2,752–4,651 mm |
| Unit width | Approximately 770–910 mm |
| Unit height | Approximately 990–1,100 mm |
| Junction box | IP65 |
| Factory pressure test | 28 bar |
| Standard casing | Powder-coated galvanized steel |
| Optional casing | Aluminium or stainless steel |
Important Technical Notice
Cooling capacity, airflow, dimensions, weight, heater power, electrical data and pipe connections vary by model and operating condition.
The final model must be selected according to the required cooling capacity, room temperature, evaporating temperature, refrigerant, local power supply and installation conditions.
Series and Fin Spacing
| Series | Fin Spacing | General Application |
|---|---|---|
| GUMDL | 4.5 mm | Higher-temperature applications with relatively limited frost formation |
| GUMDD | 6.0 mm | Medium- and low-temperature cold-storage applications |
| GUMDJ | 9.0 mm | Low-temperature and freezer applications with greater frost formation |
Final fin-spacing selection should be based on room temperature, relative humidity, product load and defrost-cycle requirements.
Model Code Explanation
Example: GUMDJ633H-E
| Code | Meaning |
|---|---|
| GUM | GUM Series |
| D | Ceiling-mounted installation |
| J | 9.0 mm fin spacing |
| 63 | 630 mm fan diameter |
| 3 | Three fan motors |
| H | Coil specification code |
| E | Electric defrost; the suffix may be omitted |
Standard Rating Conditions
| Condition | Inlet Air Temperature | Evaporating Temperature | Relative Humidity |
|---|---|---|---|
| SC1 | 10°C | 0°C | 85% |
| SC2 | 0°C | −8°C | 85% |
| SC3 | −18°C | −25°C | 95% |
| SC4 | −25°C | −31°C | 95% |
| SC5 | −34°C | −40°C | 95% |
Cooling-capacity values must always be compared under the same rating condition and refrigerant basis.
Construction and Components
Casing
The standard casing is manufactured from powder-coated galvanized steel for corrosion resistance. Aluminium and stainless-steel casing materials are available for special installation environments.
Heat Exchanger
The heat exchanger uses internally grooved tubes designed to improve refrigerant-side heat transfer. Aluminium end plates provide flexible tube support and help prevent direct contact between the copper tubes and steel components.
Aluminium Fins
Hydrophilic double-sine-wave aluminium fins are used to improve air-side heat transfer and optimise pressure drop. Fin spacings of 4.5 mm, 6.0 mm and 9.0 mm are available for different operating temperatures and frost conditions.
Fans
Large-diameter, four-pole external-rotor fans provide high static pressure and long air throw. Thermal protection is included, and EC energy-saving fan motors are available as an optional configuration.
Electric Defrost
Stainless-steel electric heaters are evenly installed through the heat-exchanger fins and drain-pan area. This arrangement supports uniform defrosting and helps prevent residual ice in low-temperature applications.
Drain Pan
The angled outer drain pan is designed to provide smooth condensate drainage. The inner drain-pan structure helps reduce air bypass, improve condensate discharge and enhance heat distribution during electric defrost.
Electrical Junction Box
An IP65 waterproof junction box and waterproof cable connectors are used to support reliable electrical connections in cold and humid environments.
Refrigerant Compatibility
The GUM Series can be applied with the following refrigerants:
R404A
R507A
R448A
R449A
R134a
R22Actual cooling capacity must be corrected according to the selected refrigerant and operating condition.
Applications
- Large cold-storage warehouses
- Frozen-food storage rooms
- Food-processing facilities
- Cold-chain logistics centres
- Distribution warehouses
- Industrial freezer rooms
- High-ceiling cold rooms
- Medium-temperature cold storage
- Low-temperature freezer storage
- Large industrial refrigeration systems
Model Selection Information
Please provide the following information before ordering:
1. Cold-room dimensions
2. Required room temperature
3. Ambient temperature
4. Product type
5. Daily product loading quantity
6. Required cooling capacity
7. Refrigerant
8. Evaporating temperature
9. Local voltage, phase and frequency
10. Maximum permitted unit dimensionsOrdering Notice
All models listed on this product page are supplied with electric defrost.
Please confirm the required model, refrigerant, operating temperature, cooling capacity and electrical power supply before placing an order.
Contact us if technical model-selection assistance is required.| GUM Series |
GUMDL632F – 4.5 mm Fin Spacing, GUMDL632G – 4.5 mm Fin Spacing, GUMDL632H – 4.5 mm Fin Spacing, GUMDL633F – 4.5 mm Fin Spacing, GUMDL633G – 4.5 mm Fin Spacing, GUMDL633H – 4.5 mm Fin Spacing, GUMDL634F – 4.5 mm Fin Spacing, GUMDL634G – 4.5 mm Fin Spacing, GUMDL634H – 4.5 mm Fin Spacing, GUMDL712F – 4.5 mm Fin Spacing, GUMDL712H – 4.5 mm Fin Spacing, GUMDL712J – 4.5 mm Fin Spacing, GUMDL713F – 4.5 mm Fin Spacing, GUMDL713H – 4.5 mm Fin Spacing, GUMDD632F – 6.0 mm Fin Spacing, GUMDD632G – 6.0 mm Fin Spacing, GUMDD632H – 6.0 mm Fin Spacing, GUMDD633F – 6.0 mm Fin Spacing, GUMDD633G – 6.0 mm Fin Spacing, GUMDD633H – 6.0 mm Fin Spacing, GUMDD634F – 6.0 mm Fin Spacing, GUMDD634G – 6.0 mm Fin Spacing, GUMDD634H – 6.0 mm Fin Spacing, GUMDD712F – 6.0 mm Fin Spacing, GUMDD712H – 6.0 mm Fin Spacing, GUMDD712J – 6.0 mm Fin Spacing, GUMDD713F – 6.0 mm Fin Spacing, GUMDD713H – 6.0 mm Fin Spacing, GUMDJ632F – 9.0 mm Fin Spacing, GUMDJ632G – 9.0 mm Fin Spacing, GUMDJ633F – 9.0 mm Fin Spacing, GUMDJ633G – 9.0 mm Fin Spacing, GUMDJ633H – 9.0 mm Fin Spacing, GUMDJ634F – 9.0 mm Fin Spacing, GUMDJ634G – 9.0 mm Fin Spacing, GUMDJ634H – 9.0 mm Fin Spacing, GUMDJ712F – 9.0 mm Fin Spacing, GUMDJ712H – 9.0 mm Fin Spacing, GUMDJ712J – 9.0 mm Fin Spacing, GUMDJ713F – 9.0 mm Fin Spacing, GUMDJ713H – 9.0 mm Fin Spacing |
|---|