insulation
3 3
.
Condensate Discharge
●
Condensing gas water for dual purpose needs discharge in the
appliance due to condensed water.
●
Please connect in reserve condensed water discharge hose to
condensed water trap and please tie them with cable tie or hose
band
●
Please put the end of hose into sewers or discharge.
●
Condensed water trap in the appliance always should be full of
water. Please check it is full or not when operate again after not
.
●
Please supply water in a condensed water trap through pipe
connection or condensed water rubber pipe
●
Please don
’
t use condensed water as drinking water.
using for a while.
●
Please clean condensed water trap more than once in a year.
●
Please untie a fixing screw and hose band when clean and
please clean a rubber hose separately
●
Please take necessary action to prevent freezing when install
condensed water discharge hose.
CAUTION
Please connect condensed water rubber pipe as it was when
supply through this pipe.
Please be careful not to splash to other parts when supply water.
3 4 Installing a Space Heating System
.
Zone control of VC unit
●
Zone control of the VC unit is performed by a zero voltage or X-X
contact from a relay or zone control panel closing when unit
operation is required.
●
You will find one brown wire looped to the upper Molex connector
of the main PC board. This wire can be cut and extended with
18 gauge thermostat wire and only connected to dry contacts from
your zone control panel end switch. See example wire diagrams on
the last four pages of this maual.
Pump Curves & Primary - Secondary Piping
●
The boiler units include a pump assembly that is used to provide the
flow through the unit heat exchangers, and has a nominal flow of
heating water for external piping arrangements.
●
This pump is not designed to be the system pump providing flow to
radiant loops or baseboard.
●
Therefore VESTA insists on using a Promary-Secondary pumping
arrangement, the recommended method uses the traditional large
diameter Primary loop.
●
The main circulation pump or the zone pumps will then provide
circulation into the zones or the heating system.
●
The only exception to this Primary-Secondary rule is for Air Handling
units with a hot water coil where the Air handling unit is located less
than 10ft from the VC unit.
20
Installing the System Piping