Bard WH602 Table Heating Pressures - All Temperatures F, Model Description, WH421-A, WH421-B

TABLE 12

HEATING PRESSURES – (ALL TEMPERATURES °F)

	Return Air
Model	Temperature	Pressure	0	5	10	15	20	25	30	35	40	45	50	55	60
WH421	70 deg.	Low Side	21	25	27	29	32	35	39	43	48	53	58	64	71
		High Side	141	147	152	158	163	169	174	180	190	201	214	229	246
WH483	70 deg.	Low Side	24	26	27	28	29	32	35	39	44	51	58	66	74
		High Side	171	173	176	178	180	184	190	197	205	214	225	237	250
WH602	70 deg.	Low Side	23	25	27	28	30	32	33	35	42	51	62	75	91
		High Side	178	182	185	189	192	194	196	205	218	236	257	283	313

Low side pressure ± 2 psig

High side pressure ± 5 psig

Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to serial plate instruction.

Model Description

TABLE 13

OPTIONAL ACCESSORIES

WH421-A WH421-B WH421-C WH483-A WH483-B WH483-C WH602-A WH602-B WH602-C

EHWH42-A05	Heater Packages	X
EHWH42-A10	Heater Packages	X
EHWH42-A15	Heater Packages	X
EHWH42-C06	Heater Packages			X
EHWH04-A04	Heater Packages				X
EHWH04-A05	Heater Packages				X			X
EHWH04-A10	Heater Packages				X			X
EHWH04-A15	Heater Packages				X			X
EHWH04-A20	Heater Packages				X			X
EHWH04-B09	Heater Packages		X			X			X
EHWH04-B15	Heater Packages		X			X			X
EHWH04-B18	Heater Packages					X			X
EHWH04-C09	Heater Packages			X			X			X
EHWH04-C15	Heater Packages			X			X			X
BOP-5	Blank Off Plate	X	X	X	X	X	X	X	X	X
BFAD-5	Barometric Fresh Air Damper	X	X	X	X	X	X	X	X	X
MFAD-5	Motorized Fresh Air Damper	X	X	X	X	X	X	X	X	X
CRV-5	Classroom Ventilator with Exhaust	X	X	X	X	X	X	X	X	X
EIFM-4	Economizer with Exhaust	X	X	X	X	X	X	X	X	X
WERV-A5B	Energy Recovery Ventilator	X	X		X	X		X	X
WERV-C5B	Energy Recovery Ventilator			X			X			X
CMH-3	Low Pressure Control (LPC)		X			X			X
CMH-7	Low Ambient Control (LAC)		X			X			X
CMH-9	LAC + LPC		X			X			X
CMH-14	Outdoor Thermostat (ODT)		X	X	X	X	X	X	X	X
CMH-15	Start Kit (SK)	X
WMCB-05B	Circuit Breaker		X
WMCB-06B	Circuit Breaker					X
WMPD-01	Circuit Breaker			X			X			X
WMCB-07B	Circuit Breaker								X
WMCB-09A	Circuit Breaker				X			X
WMCB-08B	Circuit Breaker	X

Manual 2100-399 Page 21