Kramer KL6E077DDASC Low Temperature Electric-Defrost Unit Cooler
The Kramer KL6E077DDASC is a low-profile electric-defrost unit cooler for low-temperature walk-in freezers. It delivers 8,800 BTUH on R448A or R449A refrigerant at a -20°F saturated suction temperature and a 10°F TD, moving 1,570 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 KL6E077DDASC produces 8,800 BTUH on R448A or R449A (7,700 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 KL6E077DDASC is factory-matched to the 3 HP KFO300L4SDA condensing unit. Order the condensing unit separately, or contact Budget Heating for a complete matched-system quote.
Ideal for: large walk-in freezers in supermarkets, commissary kitchens, and frozen-food operations.
Need more capacity? Step up to the Kramer KL6E090DDASC (10,600 BTUH) Low-Temp Evaporator. For a smaller freezer, see the Kramer KL6E066DDASC (7,600 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 | KL6E077DDASC |
|---|---|
| Type | Low Profile Electric-Defrost Unit Cooler |
| Application | Low Temperature Walk-In Freezer |
| Capacity (R448A/R449A) | 8,800 BTUH at -20°F SST, 10°F TD |
| Capacity (R404A) | 7,700 BTUH at -20°F SST, 10°F TD |
| Airflow | 1,570 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 | KFO300L4SDA (sold separately) |
| Listings | NSF compliant, UL and cUL listed |
| Manufacturer Warranty | 1 Year |
Evaporator Features
- 8,800 BTUH with R448A or R449A at -20°F SST and 10°F TD, and 7,700 BTUH on R404A
- Two electronically commutated (EC) fan motors moving 1,570 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 KFO300L4SDA 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 is the KL6E077DDASC designed for?
It is a two-fan low-profile electric-defrost unit cooler rated 8,800 BTUH on R448A or R449A at -20°F SST and 10°F TD, for a large walk-in freezer near -10°F.
Which condensing unit matches the KL6E077DDASC?
Kramer matches it with the 3 HP KFO300L4SDA low-temperature condensing unit, which is sold separately.
Does the coil ship with the outdoor unit or refrigerant?
No. It is the evaporator only and ships without refrigerant; the completed system is charged with R-448A or R-449A in the field by an EPA 608 certified technician.
What defrost method does the KL6E077DDASC use?
Timed electric defrost, using about 2,250 watts of heaters on a 230V circuit, which is required for freezer coils that frost faster than air defrost can clear.
How is the coil constructed?
It is a 6 fins-per-inch coil with an embossed aluminum casing and baffled fan sections, NSF compliant and designed to mount flush to the freezer ceiling.
What voltage does the KL6E077DDASC use?
Per the Kramer data sheet it is a 208-230V unit with EC fan motors drawing about 1.0 amp and a 15 amp minimum circuit ampacity, plus a separate 230V electric-defrost heater circuit.
Kramer KL6 Technical Specifications
