Kramer 1.5 HP Low Temperature Refrigeration Condensing Unit
The Kramer KFO160L4SDA is a 1.5 HP outdoor condensing unit built for low-temperature walk-in freezer refrigeration. A ZF05KAE low-temperature scroll compressor delivers approximately 4,030 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. It is the condensing unit only and matches a Kramer low-profile electric-defrost evaporator to complete a walk-in freezer system.
Is a 1.5 HP Low-Temp Condensing Unit the Right Size?
At 95°F ambient and -20°F SST the KFO160L4SDA produces about 4,030 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 KFO160L4SDA 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: walk-in freezers in restaurants, ice cream shops, convenience stores, delis, bakeries, and small food-service operations.
Need more capacity? Step up to the Kramer 2.3 HP KFO230L4SDA Low-Temp Condensing Unit. For a smaller freezer, see the Kramer 1.3 HP KFO130L4SDA 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 | KFO160L4SDA |
|---|---|
| Horsepower | 1.5 HP |
| Compressor | ZF05KAE Low-Temperature Scroll Compressor |
| Application | Low Temperature Walk-In Freezer Refrigeration |
| Refrigerant | R448A or R449A |
| Capacity | Approximately 4,030 BTUH at 95°F ambient and -20°F SST |
| Electrical | 208-230V, Single 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
- 1.5 HP ZF05KAE low-temperature scroll compressor rated for walk-in freezer duty
- Approximately 4,030 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 single phase, drawing about 7.8 rated load amps and 55 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 size walk-in freezer will the KFO160L4SDA handle?
It produces about 4,030 BTUH at 95°F ambient and -20°F SST on R448A or R449A, suiting a small to mid-size walk-in freezer near a -10°F box. Confirm the requirement with a calculated freezer load.
Is an evaporator included with this condensing unit?
No, the evaporator is separate. This is the outdoor condensing unit; it needs a matched low-profile electric-defrost coil to form a working freezer system.
How does the KFO160L4SDA compare to the 1.3 HP and 2.3 HP units?
At 1.5 HP it sits between the 1.3 HP KFO130L4SDA (about 3,380 BTUH) and the 2.3 HP KFO230L4SDA (about 6,370 BTUH), a modest step up from the smallest unit for a slightly larger or busier freezer.
What compressor is used in the KFO160L4SDA?
A ZF05KAE Copeland low-temperature scroll compressor, designed for the low suction temperatures required in freezer service.
Can the KFO160L4SDA be installed outdoors?
Yes. It is an outdoor-rated condensing unit with an all-weather housing; the matched evaporator installs inside the walk-in freezer.
Is the unit shipped with a refrigerant charge?
No. It ships with a nitrogen holding charge, and R-448A or R-449A is added in the field during charging and commissioning by an EPA 608 certified technician.
Kramer KFO Condenser Technical SpecificationsKramer Installation GuideKramer Maintenence ManualKramer Warranty
