Typical Factory Wiring Optional Field Wiring

VIA

VIB

RST

OUT

P24

LEGEND

Typical Factory Wiring

Optional Field Wiring

E-STOP

TWO-WIRE

TRANSDUCER

4-20mA

FIRE SPEED

OVER-RIDE

Fig. 58 — Toshiba TOSVERT VF-S9 VFD Factory-Installed Jumpers

Table 14 — Carrier VFD (Toshiba TOSVERT VF-S9) Program Parameter Values

PARAMETER GROUP	COMMUNICATION NO.	DESCRIPTION	CARRIER DEFAULT SETTINGS
Basic Parameters
CNOd	0003	Command Mode Selection	0*
FNOd	0004	Frequency Setting Mode Selection	1*
Fr	0008	Forward/Reverse Run Selection	1*
ACC	0009	Acceleration Time 1	10.0 sec
dEC1	0010	Deceleration Time 1	10.0 sec
FH	0011	Maximum Frequency	60.0 Hz*
UL	0012	Upper Limit Frequency	60.0 Hz*
LL	0013	Lower Limit Frequency	10.0 Hz*
Pt	0015	V/f Control Mode Selection	1*
tHr	0041	Motor Electronic Thermal Protection Level 1	See Table 15*
Sr1	0018	Preset-Speed Operation Frequency 1	60.0 Hz*
Extended Parameters
F115	0115	Input Terminal Selection 5 (S2)	14*
F116	0116	Input Terminal Selection 6 (S3)	11*
Frequency Parameters
F201	0201	VIA/II Input Point 1 Setting	20%*
F202	0202	VIA/II Input Point 1 Frequency	0.0 Hz
F203	0203	VIA/II Input Point 2 Setting	100%
F204	0204	VIA/II Input Point 2 Frequency	60.0 Hz*
Operation Mode Parameters
F300	0300	PWM Carrier Frequency	4 KHz*
F301	0301	Auto-Restart Control Selection	3*
F302	0302	Regenerative Power Ride-through Control	1*
F303	0303	Retry Selection (Number of Times)	2*
F360	0360	PI Control	1*
F362	0362	Proportional Gain	0.30
F363	0363	Integral Gain	0.20

*These settings differ from the Toshiba defaults and are required for Carrier applications.

Table 15 — Motor Electronic Thermal Protection (tHr) for Toshiba TOSVERT VF-S9 VFD

MOTOR			STD EFFICIENCY			HIGH EFFICIENCY
HP	kW	IFM Letter*	230V Setting	380V Setting	460V Setting	IFM Letter*	230V Setting	460V Setting
5	3.73	A	83	77	83	L	90	83
7.5	5.60	B	80	88	84	M	80	84
10	7.46	C	85	75	86	N	85	88
15	11.19	D	81	98	79	P	81	79
20	14.92	E	94	—	87	Q	88	87

*IFM Letter refers to the 15th digit (Motor Option) of the unit model number.

48EJ, 48AJ, 48AK, 48EK, 48AY020-060 specifications

The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 are cutting-edge rooftop air conditioning units designed for commercial applications. These models are renowned for their reliability, energy efficiency, and innovative technologies aimed at providing optimal indoor comfort.

One of the standout features of these units is their advanced cooling and heating capabilities. They employ a multi-stage compressor system that allows for precise temperature control, accommodating various load requirements. This flexibility is particularly beneficial in commercial settings where the cooling load can fluctuate throughout the day.

Energy efficiency is paramount in today’s environmental landscape, and Carrier has ensured that these models meet stringent efficiency standards. They incorporate high-efficiency scroll compressors, which significantly reduce energy consumption while delivering powerful performance. The units are also equipped with variable speed fans that adjust airflow based on demand, further optimizing energy use.

In terms of construction, these rooftop units feature a robust design that enhances durability and longevity. The cabinet is constructed to withstand harsh weather conditions, ensuring reliable performance year-round. Additionally, the units are equipped with corrosion-resistant coatings, particularly useful in coastal environments where salt exposure can be a concern.

The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY models utilize advanced controls and connectivity features, allowing for easy integration into building management systems. This connectivity enables remote monitoring and control, facilitating quick response to changing conditions and simplifying maintenance tasks.

Noise reduction is another key characteristic of these models. They are designed with sound-absorbing insulation and low-noise fan blades to ensure quiet operation, making them suitable for noise-sensitive environments such as schools and hospitals.

These units are also available with various options for air filtration and dehumidification. The use of high-efficiency air filters enhances indoor air quality by trapping dust, pollen, and other airborne particles. Enhanced dehumidification capabilities ensure that spaces remain comfortable even in humid conditions.

In conclusion, the Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 rooftop units are engineered to offer exceptional performance, energy efficiency, and durability. With their advanced technologies and user-friendly features, they stand out as reliable solutions for meeting diverse commercial cooling and heating needs, making them a popular choice for many businesses.

Carrier 48AJ, 48EW, 48EY024-068, 48AW, 48AY020-060, 48EK Typical Factory Wiring Optional Field Wiring

Models: 48EJ 48AJ 48AK 48EK 48AY020-060 48AW 48EY024-068 48EW

Typical Factory Wiring

Optional Field Wiring

Fig. 58 — Toshiba TOSVERT VF-S9 VFD Factory-Installed Jumpers

Table 14 — Carrier VFD (Toshiba TOSVERT VF-S9) Program Parameter Values

Basic Parameters

ACC

dEC1

F363

MOTOR

STD EFFICIENCY

HIGH EFFICIENCY

48EJ, 48AJ, 48AK, 48EK, 48AY020-060 specifications