Eco-King HWB-299, Installation And Service Manual

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E93.1801EN171 HWB installation manual 18
NOTICE
Water heater model HWB-299 HWB-399 HWB-499
EMISSION Values Low fire - High fire:
CO
2
flue gas
3
Natural gas % 9.8 - 9.2
Propane % 11.0 - 10.4
O
2
flue gas
3
Natural gas % 3.7 - 4.7
Propane % 4.1 - 5.0
Flue gas temperature at combustion air
temperature = 70 °F (20 °C)
°F (°C) 120 - 180 (50 - 80)
Available pressure for the flue system 4
inch WC
(Pa)
0.8
(200)
INSTALLATION
Resistance water heater
ΔT = 20 °F
ft.head (m.WC)
34 (10) 31 (9.3) 27 (8.1)
ΔT = 27 °F
ft.head (m.WC)
20 (5.9) 17 (5.2) 15 (4.7)
Pressure boiler min-max. psi (bar) 15.0 - 87.0 (1.0 - 6.0)
Max. supply temperature °F (°C) 160 (71)
ELECTRIC
Maximum power consumption W 180 200 280
Power supply V/Hz 120/60
Protection class - IPX4D
NOTES
3
CO
2
/ O
2
of the unit measured/set without the boiler front panel in place
4
Maximum allowed combined resistance of flue gas and air supply piping at high fire
High altitude operation.
High Altitude Operation
The water heater is designed to operate at its maximum listed capacity in installations at elevations less than or equal to
2000 ft (610 m) above Sea Level. Since the density of air decreases as elevation increases, maximum specified capacity
will be de-rated for elevations above 2000 ft (610 m) in accordance with the table underneath.
Elevations 2000 ft (610 m
)
3000 ft (914 m) 4000 ft (1219 m) 4500 ft (1372 m) Above 4500 ft (1372 m)
In USA No de-rate De-rate by 4 % De-rate by 8 % De-rate by 10 % De-rate 4% per 1000 ft.
In Canada No de-rate De-rate by 10% De-rate by 10 % De-rate by 10 % De-rate 4% per 1000 ft.
In USA and Canada, de-rate by 4% extra for every 1000 ft. above 4500 ft.
How to calculate De-rating at intermediate elevations for US:
Elevation between:
2000 and 3000 ft : (New value – 2000) x 0.004 Example : Elevation is 2600 ft. De-rating is (2600-2000)x0.004 = 2.4 %
3000 till 4000 ft : ((New value – 3000) x 0.004)+4 Example : Elevation is 3700 ft. De-rating is ((3700-3000)x0.004)+4 = 6.8 %
4000 till 4500 ft : ((New value – 4000) x 0.004)+8 Example : Elevation is 4200 ft. De-rating is ((4200-4000)x0.004)+8 = 8.8 %
Above 4500 ft : ((New value – 4500) x 0.004)+10 Example : Elevation is 4800 ft. De-rating is ((4800-4500)x0.004)+10 = 11.2 %
How to calculate De-rating at intermediate elevations for Canada:
Elevation between:
2000 till 4500 ft : All values derate by 10% Example : Elevation is 3600 ft. De-rating = 10 %
Above 4500 ft : ((New value – 4500) x 0.004)+10 Example : Elevation is 7600 ft. De-rating is ((7600-4500)x0.004)+10 = 22.4 %
Combustion – At elevations above 2000 ft (610 m) , the combustion of the appliance must be checked with
a calibrated (altitude corrected) combustion analyzer to ensure safe and reliable operation. No orifices or
high-altitude kits are needed, since the 1:1 Gas/Air ratio of the gas valve and the venturi will respond
automatically to reduced air pressure.
It is the Installers responsibility to check the combustion of the appliance. Failure to follow these
instructions may result in property damage, serious injury, or death.