MPT 700
6
For downward compatibility reasons, it is still possible to operate the MPT 700 in
the 608 software mode (see section 4.6)
For intention to replace the MPT 608 as well as the MPT 618 with the MPT 700,
it's necessaray to make some changes in the wireing of the installation:
•
Wireing of the electrical connections to a different mating plug
•
In mode 108 / 128 it's necessary to link a grounding conductor as like shown in
the terminal plan (see Section 5.2.6). In mode 108 the burner output 8 is used
for 'Heating / Cooling' with the Single Group Unit and burner output 7 and 8
with the Dual Group Unit.
take into consideration that the switching logic for the outputs 'Heating Cooling
1', Heating Cooling 2' and 'Out /Error' in the ESV 128 is different to the ESV
148. Therefore the connected relais may have another switching reaction.
The differences are shown in the following table:
Type
Out H/K 1
Out H/K 2
Out /Error
MPT 608
switched
switched
switched
MPT 700
not switched
not switched
not switched
Normally for the same function other switching contacts must be used. (the
contacts has to be changed instead of a normally closed contact to a normally
open contact and the other way round dependent of plant spezific facts)
•
Basicly the instructions of installation in the appendix (section 5) for the
MPT 700 device must be used.
Before commissioning the unit, always check the model (nameplate), the version
(follow the instructions above) and the parameters set. Otherwise, the unit or the
equipment connected may be damaged or destroyed.
