Technical instructions Cm Pelet-set
3
1. Introduction
Cm Pelet-set,
wood pellet based heating system (nominal burner output of
14 kW
and from
20
to
35 kW)
designed for installation in combined boilers or biomass firing boilers
EKO-CK P (EKO-CK)
and
EKO-CKB P (EKO-CKB),
with thermal output from 20 to 40 kW. These technical instructions
provide basic product information, its technical characteristics and instructions on use and
maintenance of its components. Cm Pelet-set components are of modern design and construction,
made of high quality materials having all required certificates. Cm Pelet-set installation and start-up
must be carried out by a professional or authorized fitter of manufacturer.
Instructions for fitters/servicemen presenting setting of all parameters of pellet regulation are also
supplied with these instructions.
2. Status at delivery
1. Pellet burner CPPL-14 or CPPL-35
2.a.) Set for installation of pellet burner (only new boiler models)
2.b) Lower boiler door CPDV (only for models that have special doors for installation of pellet
burner)
3. Boiler control unit CPREG
4. Pellet feeder CPPT
5. Pellet tank CPSP
2.1 Pellet burner CPPL
Pellet - burner
CPPL 14
(nominal thermal output of 14 kW, for boiler EKO-CK P 20 (EKO-CK 20) and
EKO-CKB P 20 (EKO-CKB 20)) and
CPPL-35
(nominal thermal output of 20 to 35 kW, for boilers
EKO-CK P 25-40 (EKO-CK 25-40), EKO-CKB P 25-40 (EKO-CKB 25-40)) consists of high quality
components and made of certified built-in materials. The burner includes high-efficiency fan which, by
aid of specially shaped burner grate creates a flame as in standard burners. The burner also includes
electrical heater which, via the control unit, automatically ignites pellets when required. A built-in
photo-cell serves for flame detection in the burner. Special shape of a combustion chamber enables
good mixing of air and fuel which gives high efficiency of combustion. CPPL-14 burner has additional
ceramic nozzle which improves fuel combustion. Depending on the operating phase and set output,
fan revolution number, i.e. air supply to the chamber is changed. The burner is designed for
installation into prepared openings at the lower boiler door CPDV. The burner is factory wired and it
has to be connected to the boiler control unit CPREG.
2.a)
Set for installation of pellet burner (only new boiler models)
At the current lower boiler door is necessary to upgrade the bracket for pellet burner installation.
2.b) Lower boiler door
Lower boiler door
CPDV
with an opening adapted for pellet burner is supplied with the pellet burner
CPPL (except in case of supply of a boiler with Cm Pelet-set, when the lower boiler door CPDV is pre-
installed onto boiler). Standard boiler door has to be dismantled from the boiler instead of which the
supplied boiler door CPDV is installed onto which the pellet burner is assembled.
2.3 Boiler control unit CPREG
Sophisticated digital boiler control unit
CPREG
controls the burner in accordance with the need for
heating and sanitary water. Characteristics of the boiler control unit CPREG: microprocessor control,
bimetal safety thermostat, safety pressure switch, micro switch for lower boiler door, control unit turns
on and off the burner according to set temperatures and operation regimes, regulates pellet supply by
the feeder, operation in winter or summer regime, boiler protection against condensation, display the
boiler current status on the screen, error messages on the screen, with boiler sensor and sanitary
water sensor supplied. Operation and setting of individual parameters are described in details
hereinafter.
