Description

SpacePak K Series DX Fan Coil (ESP-K & ESP-KV) – 2 to 5 Ton

The SpacePak K Series DX air handler is the next generation fan coil for small-duct, high-velocity systems. It is available in both horizontal (ESP-K) and vertical (ESP-KV) configurations and covers 2–2.5 ton, 3–3.5 ton, and 4–5 ton capacities.

If you are looking for a SpacePak fan coil in Greater Toronto that is A2L compliant, efficient, and easy to service, the K Series is designed for exactly that.

Why Choose the K Series for Greater Toronto?

• Perfect for 2–5 ton SpacePak systems in houses, townhomes and low-rise condos.
• Horizontal (ESP-K) and vertical (ESP-KV) models for tight mechanical rooms or ceiling/mezzanine applications.
• A2L-compliant design – factory ready for R-32 and R-454B DX systems, no field re-work needed.
• High-efficiency EC motor for lower electrical consumption and quieter operation.
• Built-in features to make life easier for GTA installers and service technicians (slide-out blower, float switch, corrosion-resistant cabinet, clear display).

Key Features – K Series Air Handler

• A2L refrigerant sensors and red K Series control board indicating compliance with R-32 / R-454B.
• Unit operates with R-32 or R-454B without any adjustment or re-work.
• 2-line digital display for easier set-up and diagnostics.
• High-efficiency EC integrated motor/blower assembly for smooth, quiet airflow.
• Mode-specific adjustable speed control – fine tune fan speed for cooling, dehumidification and continuous fan.
• Heat pump compatible for year-round heating and cooling.
• Chatleff thermal expansion valve (TXV) factory installed for proper refrigerant metering.
• 6-row copper/aluminum evaporator coil with ElectroFin® coating for added corrosion resistance.
• Sweat-type refrigerant connections (7/8″ suction, 3/8″ liquid) for secure, brazed joints.
• Slide-out blower section for easy cleaning and service.
• 24V 50/60 Hz transformer included.
• Industry-leading corrosion-resistant cabinet for long life in damp basements and mechanical rooms.
• Float switch to help protect against condensate overflow.
• Mold-resistant primary drain pan and anti-vibration foam strips for quieter, cleaner operation.

Capacities & Airflow

All K Series models share the same coil and motor platform, scaled to three capacities:

• 2–2.5 Ton  – 24,000–30,000 BTU/hr; 440 / 550 CFM @ 1.2″ W.C.
• 3–3.5 Ton – 36,000–42,000 BTU/hr; 660 / 850 CFM @ 1.2″ W.C.
• 4–5 Ton    – 48,000–60,000 BTU/hr; 880 / 1150 CFM @ 1.2″ W.C.

Refrigerant type: R-32 / R-454B
Coil: 6-row copper/aluminum, ElectroFin® coated
Motor: 3/4 HP EC motor (10″ x 6″ blower wheel)
Electrical: 115V or 230V, 1-phase, 50/60 Hz

Model Line-Up – Horizontal (ESP-K)

Model	Capacity	BTU/hr	CFM	Dimensions (HxWxL)	Ship Weight	F.L. Amps @ 230V / 115V
45ESP2430KHZA	2–2.5 Ton	24,000–30,000	440 / 550	14.125″ x 24.25″ x 29.375″	105 lb	2.8 A / 5.6 A
45ESP3642KHZA	3–3.5 Ton	36,000–42,000	660 / 850	14.125″ x 33.25″ x 29.375″	123 lb	4.0 A / 7.6 A
45ESP4860KHZA	4–5 Ton	48,000–60,000	880 / 1150	14.125″ x 43.25″ x 29.375″	144 lb	5.4 A / 10.6 A

Model Line-Up – Vertical (ESP-KV)

Model	Capacity	BTU/hr	CFM	Dimensions (HxWxD)	Ship Weight	F.L. Amps @ 230V / 115V
45ESP2430KVZA	2–2.5 Ton	24,000–30,000	440 / 550	34″ x 24″ x 16.125″	135 lb	2.8 A / 5.6 A
45ESP3642KVZA	3–3.5 Ton	36,000–42,000	660 / 850	34″ x 33″ x 16.125″	170 lb	4.0 A / 7.6 A
45ESP4860KVZA	4–5 Ton	48,000–60,000	880 / 1150	34″ x 43″ x 16.125″	210 lb	5.4 A / 10.6 A

Typical Applications in the GTA

The SpacePak K Series fan coil is commonly used in:

• Retrofit central air conditioning in older Toronto homes with limited duct space.
• Custom homes in Markham, Richmond Hill, Vaughan and Mississauga needing small-duct, high-velocity comfort.
• Townhomes and low-rise condos where vertical or horizontal mechanical spaces are tight.
• Heat pump upgrades using R-32 or R-454B outdoor units with a matching SpacePak fan coil.

If you are designing or replacing a SpacePak fan coil system in the Greater Toronto Area, the K Series offers the right mix of capacity, footprint, efficiency and future-ready refrigerant compatibility.

Downloads & Technical Documents

For full engineering details, wiring and installation requirements, refer to:

• K Series ESP-K / ESP-KV Submittal Data
• K Series Installation, Operation & Maintenance Manual
• Small-Duct High-Velocity System Design Guidelines

Always have a licensed HVAC contractor size, install and commission your SpacePak K Series fan coil to meet local codes and manufacturer guidelines.

Frequently Asked Questions