Kramer KL6E066DDASC Low Temperature Electric-Defrost Unit Cooler
The Kramer KL6E066DDASC is a low-profile electric-defrost unit cooler for low-temperature walk-in freezers. It delivers 7,600 BTUH on R448A or R449A refrigerant at a -20°F saturated suction temperature and a 10°F TD, moving 1,600 CFM with two electronically commutated fan motors. Sold as the evaporator only, it completes a walk-in freezer system when matched with a Kramer low-temperature condensing unit.
Capacity, Defrost, and Matched Condensing Unit
At -20°F SST and a 10°F TD the KL6E066DDASC produces 7,600 BTUH on R448A or R449A (6,600 BTUH on R404A), suited to a walk-in freezer held near -10°F. Freezer coils frost faster than off-cycle air can clear, so this unit uses timed electric defrost — about 2,250 watts of heaters on a 230V circuit — rather than air defrost.
This is the indoor evaporator only. To build a complete walk-in freezer system it pairs with a matched Kramer low-temperature condensing unit — the KL6E066DDASC is factory-matched to the 2.3 HP KFO230L4SDA and the 2.5 HP KFO250L4SDA condensing unit. Order the condensing unit separately, or contact Budget Heating for a complete matched-system quote.
Ideal for: mid-size walk-in freezers in grocery stores, restaurants, and commissary kitchens.
Need more capacity? Step up to the Kramer KL6E077DDASC (8,800 BTUH) Low-Temp Evaporator. For a smaller freezer, see the Kramer KL6E035DDASC (4,000 BTUH) Low-Temp Evaporator.
Recommended refrigeration applications are general guidelines only. Actual system requirements depend on insulation, ambient conditions, door openings, product load, and operating temperature. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
Evaporator Specifications
| Evaporator Model | KL6E066DDASC |
|---|---|
| Type | Low Profile Electric-Defrost Unit Cooler |
| Application | Low Temperature Walk-In Freezer |
| Capacity (R448A/R449A) | 7,600 BTUH at -20°F SST, 10°F TD |
| Capacity (R404A) | 6,600 BTUH at -20°F SST, 10°F TD |
| Airflow | 1,600 CFM |
| Fans | 2 EC Fan Motors |
| Fan Motor Draw | 1.0 A (208-230V, 1 phase, EC) |
| Defrost | Electric Defrost |
| Electric Defrost Heaters | 2,250 W, approximately 9.8 A at 230V |
| Coil | 6 Fins Per Inch |
| Refrigerant | R448A or R449A |
| Minimum Circuit Ampacity | 15 A (base model, 208-230V/1) |
| Maximum Overcurrent Protection | 20 A |
| Matched Condensing Unit | KFO230L4SDA, KFO250L4SDA (sold separately) |
| Listings | NSF compliant, UL and cUL listed |
| Manufacturer Warranty | 1 Year |
Evaporator Features
- 7,600 BTUH with R448A or R449A at -20°F SST and 10°F TD, and 6,600 BTUH on R404A
- Two electronically commutated (EC) fan motors moving 1,600 CFM through a draw-through air pattern
- Timed electric defrost with approximately 2,250 watts of heaters on a 230V circuit, required for low-temperature freezer service
- 6 fins-per-inch coil using enhanced copper tubes mechanically expanded into corrugated aluminum fins with die-formed collars
- Multi-circuit coil fed by a refrigerant distributor with a factory-mounted thermostatic expansion valve selected for R448A and R449A service
- Embossed aluminum casing with baffled fan sections, NSF compliant and designed to mount flush to the freezer ceiling
- Removable drain fitting at the bottom of the pan, replaceable without changing the pan; a heated drain line is recommended in freezer service
- 208-230V EC fan motors on a 15 amp minimum circuit ampacity and 20 amp maximum overcurrent protection (base model), with a separate 230V electric-defrost heater circuit
- Factory matched to the KFO230L4SDA, KFO250L4SDA low-temperature condensing unit for balanced capacity at freezer conditions
- UL and cUL listed, backed by a 1 year Kramer manufacturer warranty
Specifications & Manuals
Product documentation includes technical specifications, installation information, maintenance instructions, warranty information, and KL6 Series literature to assist with equipment selection, installation, and service. This evaporator carries a 1 year manufacturer warranty; see the Kramer warranty documentation above for full coverage terms and conditions.
Frequently Asked Questions
What size freezer does the KL6E066DDASC serve?
It is a two-fan low-profile electric-defrost unit cooler rated 7,600 BTUH on R448A or R449A at -20°F SST and 10°F TD, for a mid-size walk-in freezer near -10°F.
Is a condensing unit included with this coil?
No. The evaporator is sold on its own and pairs with a matched low-temperature condensing unit to complete the freezer system.
Which condensers pair with the KL6E066DDASC?
It matches the 2.3 HP KFO230L4SDA and the 2.5 HP KFO250L4SDA low-temperature condensing units.
How much airflow does the KL6E066DDASC move?
Two EC fans move about 1,600 CFM in a draw-through pattern, spreading cold air across a mid-size freezer box.
What are the electric-defrost heater ratings?
The coil carries about 2,250 watts of electric defrost, drawing roughly 9.8 amps on a 230V heater circuit during the timed defrost cycle.
Are the fan motors energy-efficient?
Yes. It uses electronically commutated (EC) fan motors, which draw less power than standard PSC motors and are compliant with current motor-efficiency requirements.
Kramer KL6 Technical Specifications
