Hubbell MH, MSH manual Steam Consumption Formula, Dual Fuel Model Number Designation

ModelMSHMSH& MH& MH

Optional Steam Package ShipboardElectricElectric

WaterHeatHeater

Steam Consumption Formula

GPH  x °F ∆T  x  8.33

=Lbs / Hr Steam

Latent Heat of Steam

Steam Pressure (psi)	0	2	5	10	15	20	25	30	40	50
Latent Heat	970	966	960	953	946	939	933	929	920	912

Dual Fuel Model Number Designation

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■ Step 1	■ Step 2	■ Step 3		■ Step 4
Model:	Gallon Capacity:	Primary		Secondary
MSH = Vertical	80-5000 U.S. Gallons	Heating:		Electric
MH = Horizontal		ST = Steam		Heating:
		BW = Boiler		5-1600KW
			Water
		O = No steam

Example: MSH400-ST-120SLT5

■ Step 5

Tank:

SL = Hydrastone Cement lined tank

GL = Phenolic Lined Steel

CN = Solid 90/10 Copper-Nickel

SS= Solid Stainless Steel (specify Type 304, 316 or 316L)

■ Step 6

Voltage / Phase / Hz:

RS = 208-1-60

R	= 208-3-60
S	= 240-1-60
T	= 240-3-60
W	= 277-1-60
T3	= 380-3-50/60
T7	= 415-3-50/60
T5	= 440-3-60
T4	= 480-3-60
T4S	= 480-1-60

A Hubbell vertically installed 400 gallon dual fuel marine water heater with a factory installed steam heating coil as the primary heating source and a 120 KW electric heating element to operate as the secondary heating source. Tank is cement lined. Power required is 440 VAC, 3 phase, 60 Hz. Please note that steam heating capacity and construction features are not identified in the model number and therefore must be noted in the written specifications.

T6 = 600-3-60

Option Note

Any and all optional equipment for a water heater must be called out in the written specifications. A model number in and of itself does not reflect any optional equipment selected.

(Manufacturer reserves the right to change specifications without notice.)

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