11
06
THERM CONNECT
basic
WOLF run around coil systems
6. THERM-CONNECT basic
06.01 General description
The high efficiency run around coil system consists of two heat exchangers with a high counterflow ratio and a
series connection of the individual heat transfer stages.
The heat is transferred via an intermediate medium consisting of a water-glycol mixture between the exhaust air coil
and the outdoor air coils.
The brine mass flow is controlled by the three-way control ball valve depending on the power demand of the BMS.
In addition, frost protection can be controlled via this using a temperature sensor provided by the customer. This
allows the brine mass flow to be routed past the supply air coil in order to prevent ice formation on the coil. The
pump is controlled digitally by switching the operating voltage through an on-site contactor.
VL
RL
M
P
AB
B
A
Outside air
Exhaust air
Supply Air
Exhaust air
Expansion tank
A3
Z2
Z1
VL
RL
A4
Drainage and venting on site
Liter limit
WOLF Geisenfeld
Liters
DN
Transfer points
Z1 " IG
Z2 " IG
A3 " IG
A4 " IG
Rotary valve
Fabr. Belimo
type:
High pressure pump
Fabr. EBARA
DN
Änderung
Qualitätsmanagement
DIN EN ISO 9001
zertifiziert nach
Zust.
Name
Datum
Norm
Gepr.
Bearb.
2018
Datum
Hochleistungs-KVS
Prinzipschema
Änderungen vorbehalten
MAßSTAB
AB-
Kom. THERM-CONNECT basic
Maßstab
Name
Bl
Blatt
GmbH & Co.KG
WOLF Anlagen-Technik
85290 Geisenfeld
Münchener Str. 54
Fax.08452 / 99-250
Tel. 08452 / 99-0
Diese Zeichnung darf ohne unsere ausdrückliche Genehmigung weder vervielfältigt, noch dritten Personen oder Konkurrenzfirmen im Original oder
als Kopie ausgehändigt werden. Eigentums- und Urheberrecht vorbehalten.
DN
19.01.2019
F.Franz
Safety valve
6 bar
1
2
" Connection
for
on-site frost
protection
06.02 Control functions
• External release Pump On
• Pump starts up to set frequency.
• External power signal ( 0-10V DC) directly controls the three-way valve for power control.
• External enable pump off
• The system stops
Frost protection control:
An on-site temperature sensor for frost protection control can be integrated via the existing ½” connection in the
exhaust air flow.
