Raypak B0507, Руководство пользователя и инструкции по установке

Страница: 46 / 57

TEMPERATURE CONTROL
46
TEMPERATURE ADJUSTMENT – MODULATING MODELS (RWF55 ELECTRONIC THERMOSTAT)
All modulating models are fitted with an RWF55 electronic
thermostat which has the following features:

The thermostat display shows the current tank
sensor (probe) temperature and the current set point
temperature during normal operation.

The thermostat has parameters that control system
operation. Refer to
"RWF55 Parameters" on page
46 .

Thermostat set point, parameters, parameter options
and parameter settings (or parameter information)
can be viewed or adjusted. Refer to
"RWF55
Adjustment" on page 47 .

The burner symbol will illuminate green whenever the
thermostats internal relay is closed (call for heat).

If the thermostat detects a faulty temperature sensor
the thermostat will show a fault code on the display.
Refer to "Diagnostic Features Of RWF55 Controller"
on page 8 .

An Ambient Air Compensator (not supplied) can be connected. Refer to
“Ambient Air Compensator”
on page
49 .
RWF55 Parameters
The RWF55 thermostat has parameters that control hot water system operation. Under normal conditions,
including a power outage, parameter settings do not require adjustment; however, parameter settings may be
altered to „fine tune‟ a system to suit a particular installation.
The parameter menu is comprised of a process data level parameter menu, a parameter level parameter menu and
a configuration level parameter menu.
The following tables detail all available parameters, each parameter range and the default (factory) setting of each
parameter. Parameters
MUST
be set to the grey shaded „Raypak Setting‟ column for the hot water system to
operate correctly.
RWF55 User (OPr) Level Parameters
Parameter Display Value Range Raypak Setting
Set point 1 SP1 SPL
– SPH
78
(1)
(1)
Set point is user definable and
may differ to setting shown in „Raypak Setting‟ column.
RWF55 Parameter (PArA) Level Parameters
Parameter Display Value Range Raypak Setting
Proportional band Pb.1
0.1….999.9 digit
20
Derivative time dt
0….9999 seconds
15
Integral action time rt
0….999.9 digit
60
Dead band (neutral zone) db
0….999.9 digit
3
Actuator running time tt 0.0 to -1999.9 digit 30
Switch on threshold burner HYS1 0.0 to -199.9 digit -3
Switch off threshold stage II HYS2
0.0….HYS# digit
0
Upper switch off threshold HYS3
0.0….999.9 digit
4
Response threshold q
0.0….999.9
0.0
Modulating down
Modulating up