This means that the boiler complies with the NOx Order and
provisions on clean combustion. The boiler has a gas/air coupling
combined with a fully premixed burner. For this reason, the emission
of NOx and CO is as low as possible.
NZ gas approval (Solar water heater reheating)
This implies that the hot water/heating boiler can operate on reheating
for solar water heaters. The label (solar water heater reheating) is
valid in combination with the connection kit for solar water heaters.
Owing to the possible formation of legionella, the boiler must not be
shut down or the DHW temperature set below 60°C.
1.4.2.
Equipment categories
Gas category Gas type
Connection pressure (mbar)
II
2L3P
, I
2H
G20 (Gas H)
20
G25 (Gas L)
25
G31 (Propane) 30/50
The boiler is preset in the factory to operate on natural gas G25 (Gas
L).
1.4.3.
Additional Directives
Apart from the legal provisions and Directives, the additional
Directives described in these instructions must also be observed.
For all provisions and Directives referred to in these instructions, it is
agreed that all addenda or subsequent provisions will apply at the
time of installation.
1.4.4.
Factory test
Before leaving the factory, each boiler is set for optimum performance
and tested to check the following items:
4
Electrical safety
4
Adjustment (CO
2
)
4
Domestic hot water mode (Only on models with domestic hot water
production)
4
Water tightness
4
Gas tightness
4
Parameter settings
T001779-B
NZ
Calenta 25s - 28c - 35s - 40c
1. Introduction
040412 - 7600585-01
9
