Tarm Biomass Bonus Plus 30, Инструкция по установке и эксплуатации, Страница: 27 / 55

Bonus Plus Instructions Tarm Biomass 1-800-782-9927 Version 11/14 Page 27
The Lo-Limit Thermostat Sensor
location.
The sensor should be inserted
into the sensor well at a depth
equal to the width of the cleanout
opening.
The Lo-Limit thermostat (I) should only be adjusted by a qualified user only.

The sensor is placed in the sensor well above the fan housing, inboard from the fan, lo-
cated on the top of the boiler at the back left. The sensor measures flue gas temperature
and should be set to the factory setting of 90 °C.

When the flue gas temperature drops below this set-point at the end of a burn cycle, the
combustion fan shuts off. This prevents the fan from continuing to run after the fire has
burned out which would cool off the boiler and send heat up the chimney.
The Operating Temperature setting (H) should only be adjusted by a qualified user only.

The standard operating temperature of the boiler should be at least 80 °C. The recom-
mended default setting is 85 °C and can be monitored by the boiler thermometer
(C).
The boiler must be used with a thermostatic boiler protection device such at the Lk
Armatur LK810 Loading Unit with the ability to supply a minimum return water
temperature of at least 60 °C.

The ideal scenario is when the boiler burns up the last of the fuel load and the fan shuts
off just before the boiler and thermal storage tank(s) reach the boiler set-point tempera-
ture. If the boiler and thermal storage reach set-point temperature before the fuel load is
completely consumed, the combustion fan will shut off and the boiler will go into a
standby idle mode. This will cause unnecessary, and potentially damaging, creosote
build-up in the boiler and is to be avoided.
Fig. 4.3
Fig. 4.4
Boiler Operation, Maintenance, and Service > Control Panel Orientation