Lochinvar LCGHP, User Manual

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3 OVERVIEW AND TECHNICAL FEATURES
8
Initial activation procedure
The complete procedure for the first start up of the appliance must be carried out by an authorized technician according to the
instructions supplied by the manufacturer.
To carry out entire procedure correctly, follow the instructions in Paragraph 7.1 p. 54.
Warranty could be invalidated if the first start up is not carried out and validated by an authorized technician.
Operation and maintenance of the appliance
To ensure the correct operation of the appliance and to avoid failures, control of the switching on and off of the appliance must be
done in line with the requirements of the various types of installation.
▶
If the appliance is connected to the Comfort Control Panel (see Figure 6.3 p. 31 detail CCP), the appliance may be switched on
and off exclusively by the CCP itself.
▶
If the appliance is connected to the DDC (see Figure 6.4 p. 32), the appliance may be switched on and off exclusively by the
DDC itself.
▶
If the appliance is NOT connected to a CCP/DDC, the appliance may be switched on and off exclusively by a switch on the consent
circuit.
The appliance must never normally be switched on and off by shutting off the power supply upstream of the Controle
Device (CCP, DDC or consent switch) before having used the latter first and waited for the shutdown cycle to end (approxi-
mately 7 minutes). The shutdown cycle terminates when the hydraulic pump switches off (no parts in motion).
Shutting off the power supply while the appliance is running can cause permanent damages to internal components!
If the appliance fails to operate correctly, with the consequent indication of the Machine code, follow the instructions of Paragraph
8.1 p. 60.
In the event of failure of the appliance and/or breakage of any component, do not attempt to repair and/or restore opera-
tion; proceed as follows:
▶
shut off the appliance immediately (if possible and if no dangerous condition exists) through the controls (CCP, DDC or permis-
sive switch) and wait for the end of the cooling down cycle (around 7 minutes);
▶
immediately get in touch with Technical Assistance.
Proper ordinary maintenance ensures the efficiency and good operation of the appliance over time.
Carry out maintenance operations according to the instructions supplied by the manufacturer.
For the maintenance of internal components of the appliance, contact Technical Assistance; for other maintenance requirements,
see Paragraph 7.2 p. 57.
Any repair of the appliance must be carried out by Technical Assistance, using only original spare parts.
Failure to observe the indications above may compromise the operation and safety of the appliance, and may invalidate
warranty.
If the appliance is to be disposed of, contact the manufacturer for its correct disposal.
If the appliance is to be sold or transferred to another owner, ensure that this “Installation, user and maintenance manual” is
handed over to the new owner and installer.
3�2 NOTES ON OPERATION OF THE APPLIANCE
The appliance uses the water/ammonia absorption thermodynamic cycle (H
2
0 – NH
3
) to produce hot water, using atmospheric air
as renewable energy source.
The water/ammonia thermodynamic cycle used in the unit LCGHP/LSGHP is realized in a hermitically sealed circuit, directly verified
by the manufacturer to ensure the perfect tightness of all joints, thus making refrigerant top-ups completely unnecessary.
Description and general characteristics
The air-water gas absorption heat pump LCGHP/LSGHP is available in the following versions:
▶
Version HT: optimised for high temperature distribution systems (radiators, fan coils); it produces hot water up to +65°C in heat-
ing mode and up to +70°C in Domestic Hot Water mode.
▶
Version LT: optimised for low temperature distribution systems (heating floor, low temperature radiators); it produces hot water
up to +55°C in heating mode and up to +70°C in Domestic Hot Water mode.
The fan can be:
▶
low consumption (LCGHP): reduction of the electrical consumption and reduction of noise emissions
▶
standard (LSGHP)
The LCGHP/LSGHP heat pump can be controlled with the CCP/DDC or with a switch on the consent circuit.
During operation, combustion products are exhausted via the discharge terminal at the left side of the appliance (see Figure 1.1 p.
or Figure 3.2 p. 13). The fumes outlet must be connected to a flue (for further details, see Paragraph 5.7 p. 26).
The appliance powered by 230 V 1N 50 Hz electrical power - .