User Guide

8 | Preparing the appliance for operation
6 720 806 993 (2013/03)Greenstar
The commercial and industrial use of the appliance for generating process heat is not
permitted.
2.3 Overview of boiler types
Z Central heating appliance
W DHW heating
B Condensing technology
R Constant temperature control
16…42 Output up to 54,600 / 71,600 / 95,500 / 119,400 / 143,300 BTU/hr
(16 / 21 / 28 / 35 / 42 kW)
-3 Version
A Fan-supported appliance
3 Preparing the appliance for operation
If existing, open the heating supply valve and the heating return valve.
If existing, open the cold water valve and the DHW valve.
When using ZBR..-3A appliances with DHW tank, open a DHW tap until water runs
out.
Open the gas cock.
Open the control panel cover.
Greenstar ZBR16-3A
ZBR21-3A
ZBR28-3A
ZBR35-3A
ZBR42-3A
ZWB28-3A
ZWB35-3A
ZWB42-3A
Table 2