Lochinvar EcoForce EF100, Installation, Commissioning, User And Maintenance Instructions

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84
S
OFT
S
TART
O
PTIONS
Start parameters can be modified to achieve better starting behaviour, in case of noise or other difficulties. This is done by reducing the fan
ramp-up speed. Two reduced settings are available (I and II).
P4BE Soft start (0=normal, 1=reduced fan ramp-up speed (I), 2= reduced fan speed ramp-up (II))
(display D9).
0 = normal start-up
1 = reduced fan ramp-up speed (I)
2 = reduced fan ramp-up speed (II)
P
UMP
M
ODE
(EC T
ECHNOLOGY
)
When using a pump with Electronic Commutation technology and start-stop function, with a separate control connection, this parameter
determines the relay for switching the pump on and off.
P5BN Pump mode (0=modulating, 1=relay1, 2= relay2, 3= relay3) (display DA).
Do not use the 230 Vac relay for the main power supply of the pump, but directly connect the pump to an external
power supply.
power supply.
A modulating pump with PWM control: the power supply is directly connected to the mains, the PWM connection is connected to CN10,
contacts 9 and 18.
Pumps with an on/off control can be switched by one of the relay connections “lock-out”, “burner burning” or “heat demand”. Choose a
connection which is not yet used.
0 =
PWM 0-100% modulating pump, connection CN10, connector 9 and 18
1 = Start-stop through relay 1, connector 19 and 20 (lock-out)
2 = Start-stop through relay 2, connector 21 and 22 (burner burning)
3 = Start-stop through relay 3, connector 23 and 24 (heat demand)
4 = Do not use (reserved for future applications).
T
ANK
S
ENSOR
S
ENSITIVITY
P2KH Gradient heat demand detection DHW tank temperature (display BG)[0.1°C]
With S3 in use as tank sensor, the water heater can detect a large demand on the buffer tank allowing the water heater to react faster to this
demand. The sensitivity of this sensor can be set in parameter P2KH in tenths of degrees.
COMMISSIONING AND TESTING
W
ATER
H
EATER
F
IRST
F
LUSH
After installation of the water heater the first step, before commissioning, is to flush the water heater and the whole DHW installation with fresh
water to remove pollution, debris and other materials that might cause a blockage. This must also be done with installations, where only the
water heater is replaced.
F
ILLING
A
ND
V
ENTING
T
HE
S
ECONDARY
S
YSTEM
A
ND
W
ATER
H
EATER
(S)
After flushing the water heater and the installation, the system can be filled with fresh water by opening the water supply valve of the system
and opening all the taps that are on the system. The water pressure of the system should be between a minimum of 1 bar and a maximum of
10 bar, depending on the installed pressure safety valve.
The water heater has an automatic air vent situated on top of the water heater (at the roof panel). This vent must be opened during the filling
of the water heater and the DHW system to make sure that no air/oxygen is trapped in the heat exchanger of the water heater.
NOTICE: Check that the screw cap has been loosened at least one twist.
Make sure that, during flushing and filling, no water can reach any electrical parts of the water heater.