Kramer 1.3 HP Low Temperature Refrigeration Condensing Unit
The Kramer KFO130L4SEA is a 1.3 HP outdoor condensing unit built for low-temperature walk-in freezer refrigeration. A ZF04KAE low-temperature scroll compressor delivers approximately 3,380 BTUH at a 95°F ambient and a -20°F saturated suction temperature on R448A or R449A refrigerant, holding a walk-in freezer near a -10°F box temperature. Sold as the condensing unit only, it forms a complete freezer system when matched with a Kramer low-profile electric-defrost evaporator.
Is a 1.3 HP Low-Temp Condensing Unit the Right Size?
At 95°F ambient and -20°F SST the KFO130L4SEA produces about 3,380 BTUH on R448A or R449A, matched to a walk-in freezer holding roughly -10°F. Freezer load is driven by insulation R-value, outdoor ambient, door-opening frequency, the quantity and entering temperature of product frozen or stored each day, and required pull-down time, so size from a calculated load rather than floor area alone.
This listing is for the outdoor condensing unit only. To build a complete walk-in freezer system, it pairs with a matched Kramer low-profile unit cooler with electric defrost — the KFO130L4SEA is factory-matched to the KL6E035DDASC evaporator. Low-temperature evaporators use electric defrost rather than air defrost, because a freezer coil accumulates frost that off-cycle box air cannot clear.
Ideal for: small walk-in freezers in restaurants, ice cream shops, convenience stores, delis, bakeries, and small grocery or food-service operations.
Need more capacity? Step up to the Kramer 1.5 HP KFO160L4SEA Low-Temp Condensing Unit.
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.
Condensing Unit Specifications
| Condensing Unit Model | KFO130L4SEA |
|---|---|
| Horsepower | 1.3 HP |
| Compressor | ZF04KAE Low-Temperature Scroll Compressor |
| Application | Low Temperature Walk-In Freezer Refrigeration |
| Refrigerant | R448A or R449A |
| Capacity | Approximately 3,380 BTUH at 95°F ambient and -20°F SST |
| Electrical | 208-230V, Three Phase, 60 Hz |
| Minimum Circuit Ampacity | 15 A |
| Maximum Overcurrent Protection | 15 A |
| Matched Evaporator | KL6E035DDASC Low Profile Unit Cooler (sold separately) |
| Factory Charge | Nitrogen Holding Charge — Refrigerant Field Supplied |
| Manufacturer Warranty | 1 Year |
Condensing Unit Features
- 1.3 HP ZF04KAE low-temperature scroll compressor rated for walk-in freezer duty
- Approximately 3,380 BTUH at 95°F ambient and -20°F saturated suction on R448A or R449A
- Configured for R448A and R449A, the current-generation replacements for R404A in low-temperature refrigeration
- Integral liquid sub-cooling circuit for improved efficiency and stable expansion valve operation
- Flooded head pressure control standard, supporting operation as outdoor ambient temperatures drop
- Generously sized condenser coil with enhanced copper tubes and aluminum fins in an all-weather painted galvanized steel housing
- Ships under a nitrogen holding charge, with a refrigerant receiver, isolation valve, and pressure relief plug
- Liquid line with sealed filter and sight glass, factory crankcase heater, and defrost termination provisions for a matched electric-defrost evaporator
- Fixed high-pressure and adjustable low-pressure controls, with quick-access shut-off valves and color-coded point-to-point wiring
- 208-230V three phase, drawing about 6 rated load amps and 55.4 locked rotor amps, on a 15 amp minimum circuit ampacity and 15 amp maximum overcurrent protection
Specifications & Manuals
Product documentation includes technical specifications, installation information, maintenance instructions, and warranty information to assist with equipment selection, installation, and service. This condensing unit carries a 1 year manufacturer warranty; see the Kramer warranty documentation above for full coverage terms and conditions.
Frequently Asked Questions
What is the KFO130L4SEA condensing unit designed for?
It is a low-temperature condensing unit for walk-in freezers, matched to a refrigeration load near 3,380 BTUH at 95°F ambient and -20°F SST, which holds a small freezer near a -10°F box temperature. It is not intended for medium-temperature cooler service.
Does this listing include an evaporator?
No. This is the outdoor condensing unit only. A complete walk-in freezer system also requires a matched low-profile evaporator with electric defrost, sold separately.
Which evaporator matches the KFO130L4SEA?
Kramer factory-matches it with the KL6E035DDASC low-profile electric-defrost unit cooler. Contact Budget Heating to order the two as a complete system or to confirm an alternate coil for your box.
Why does a freezer system need electric defrost instead of air defrost?
Below freezing, frost builds on the evaporator coil faster than off-cycle box air can melt it. Low-temperature coils use electric defrost heaters on a timed cycle to clear the coil, which is why the matched evaporator is an electric-defrost (DD) model.
What electrical service does the KFO130L4SEA require?
A dedicated 208-230V three-phase, 60 Hz circuit. The unit draws about 6 rated load amps with a 15 amp minimum circuit ampacity and 15 amp maximum overcurrent protection.
Does the condensing unit ship with refrigerant?
No. It ships under a nitrogen holding charge only. R-448A or R-449A is field supplied, and the completed system must be evacuated, charged, and commissioned by an EPA 608 certified technician.
Kramer KFO Condenser Technical SpecificationsKramer Installation GuideKramer Maintenence ManualKramer Warranty
