York AHP18 specifications Cooling Models With Electric Heat Wiring

							255029-YTG-M-0610
ELECTRICAL DATA (FOR SINGLE SOURCE POWER SUPPLY) - COPPER WIRE 208/230-3-60
	Heat Kit -	Heater			Field Wiring
Models		Amps	Min. Circuit Ampacity		Max. O.C.P.1 Amps/Type		75°C Wire Size - AWG
	Three Phase
		240V
			208V	240V	208V	240V	208V	240V
AHP24B**H21	4HK06501025	23.1	27.1	31.3	30	35	10	8
AHP30B**H21	4HK06501025	23.1	26.8	30.8	30	35	10	8
	4HK065N1525	34.7	40.0	46.1	40	50	8	8
AHP36C**H21	4HK06501025	23.1	27.5	31.6	30	35	10	8
	4HK06501525	34.7	40.0	46.1	40	50	8	8
	4HK06501025	23.1	29.1	33.4	30	35	10	8
AHP42C**H21	4HK06501525	34.7	41.6	47.9	50	50	8	8
	4HK06501825	41.4	48.9	56.3	50	60	8	6
	4HK06501025	23.1	29.3	33.6	30	35	10	8
AHP48D**H21	4HK06501525	34.7	41.8	48.1	50	50	8	8
	4HK06501825	41.4	49.0	56.5	50	60	8	6
AHP60D**H21	4HK06501025	23.1	34.5	38.4	35	40	8	8
	4HK06501525	34.7	47.0	52.9	50	60	8	6

1.O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.

2.Heaters are 3 Phase.

ELECTRICAL DATA (FOR MULTI SOURCE POWER SUPPLY) - COPPER WIRE 208/230-3-60

		Minimum Circuit Ampacity			Max. O.C.P.1 Amps/Type			75°C Wire Size - AWG
Models	Heater				Circuit
	Model
		1st	2nd	3rd	1st	2nd	3rd	1st	2nd	3rd
		208/240	208/240	208/240	208/240	208/240	208/240	208/240	208/240	208/240
AHP60D**H21	4HK16501825	31.9/35.4	22.4/25.9	–/–	35/40	25/30	–/–	8/8	10/10	–/–
	4HK16502525	40.8/45.6	31.3/36.1	–/–	45/50	35/40	–/–	8/8	8/8	–/–

1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.

COOLING MODELS WITH ELECTRIC HEAT WIRING

MA SERIES - Air Handler Control Wiring

MA SERIES - Air Handler Control Wiring

Typical A/C - Cooling only Applications

Typical A/C with Electric Heat Applications

THERMOSTAT

AIR HANDLER

1 - STAGE

THERMOSTAT

AIR HANDLER

1 - STAGE

BOARD

BOARD

R

R

AIR CONDITIONING

R

R

AIR CONDITIONING

G

G

G

G

Y

Y / Y2

Y

Y

Y / Y2

Y

W1

Y1

Y1

W2

W2

W2

W2

C

W1

HUMIDISTAT *

W1

W1

HUMIDISTAT *

O

C

O

HUM

HUM

X / L

X / L

COM

C

COM

C

COOLING MODELS WITH ELECTRIC HEAT WIRING

*Optional dehumidification humidistat switch contacts open on humidity rise. Notes:

1. “Y” Terminal on Air Handler Control Board must be connected for full CFM and applications requiring 60 second blower off delay for SEER enhancement.

2. Move HUM STAT Jumper on AH Control Board to YES position if Humidistat is used.

3. MODE Jumper on AH control board should be set to A/C for air conditioners.

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