Technical data

ProCon HT 150 / HT 225 1. Installation
1 Installation
1.1 Scope of delivery ProCon HT 150 / HT 225
Gas condensing boiler, fully piped and wired, configured for
natural gas group E (H)
Included in the gas condensing boiler delivery are:
ProCon Standard:
- An “Installation/operation/maintenance ” instruction manual
- An outdoor temperature sensor with screws and plugs
- Cascade controller RVA 47.320, we ather-controlled with weekly
time switch program operation
- Water deflector (integrated)
ProCon Master:
- An “Installation/operation/maintenance ” instruction manual
- An outdoor temperature sensor with screws and plugs
- Cascade controller RVA 47.320 weather-controlled with weekly
time switch program operation
- Cascade flow and return temperature sensor
- Without w ater deflector
ProCon Slave:
- An “Installation/operation/maintenance “ instruction manual
1.2 Description
Text for invitation of tender ProCon HT 150 / HT 225.
1.3 Control and control accessories
ProCon HT 150 consists of two 75 kW heat generator modules
as well as a cascade and heating circuit controller (RVA 47).Each
heat generator module features a module control unit
(L MU). The L M U controls and regulates the heat generator
module.
ProCon HT 225 consists of three 75 kW heat generator modules
as well as a cascade and heating circuit controller (RVA 47). Each of
the three heat generator modules features a module control unit
(LMU). The L M U controls and regulates the heat generator module.
By means of the corresponding control panel (AGU), each L M U can
be manually switched on or switched to control stop for the purpose of
adjustment .
• Overview of boiler control system
Fig. 1: F unctional mechanism of boiler
control system : RVA 47: Cascade and
heating circuit controller
L M U: Module control unit 1, 2, 3
OCI: Bus clip-in module
AGU: Control panel module 1, 2, 3
• Cascade and heating circuit controller (RVA 47)
It is used for the cascade control of two or three heat generator
modules or up to six Pro- Con HT 150 or four ProCon HT 225s in
the case of multiple devices. Only 1 controller is required in the
master device. The other devices communicate with the master
device via LPB system bus.
The optimized operation of all activated boilers with the lowest
possible capacity as well as control of operation sequence
combined with the boiler heat-up times ensure constant loading of
the boiler .
Features
- flow temperature control for radiators dependent on outdoor
temperatures
- 1 Pump heating circuit
- Domestic water circuit
- Freely selectable timing program
- Demand-dependent pump control
- Frost protection function
- Simple electrical connections
- Integrated 2-wire interface for direct connection to LPB system
bus
5