Sime Murelle Equipe 220 BOX ErP handleiding

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Handleiding

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2.11.3 Displaying and setting cascade

parameters

The parameters for

Sime

Murelle HE

boilers in a cascade can be displayed and

set in the same way as with single boilers

(see “Parameter setting and display” and

“List of parameters”).

WARNINGS: For the cascade to function

correctly, the external temperature

sensor (SE) must be installed.

2.11.4 Routing the cascading boilers

CAUTION: Before changing “PAR 15”

(routing the cascade), the boilers in the

cascade must be set to WINTER mode.

On each boiler in the cascade, “PAR 15”

must be set as follows:

“0”

to identify the master boiler

“1”

to identify slave boiler no. 1

“2”

to identify slave boiler no. 2

“3”

to identify slave boiler no. 3

“4”

to identify slave boiler no. 4

“5”

to identify slave boiler no. 5

“6”

to identify slave boiler no. 6

“7”

to identify slave boiler no. 7

NOTE:

Avoid labelling the slave boilers

with the same number.

2.11.5 CASCADE parameters for the

master boiler

After setting PAR 15 on the master boiler,

and where there are more than two boilers

in the cascade, access the CASCADE

parameters on the master boiler (identified

by PAR A plus a number as shown in the

table) and configure parameter PAR A1.

To access the CASCADE parameters:

- press buttons

and

(~ 2s) at the

same time until the parameter menu

shows

- press buttons

and

(~ 2s) at the

same time again until “--” appears on

the display

- to access the CASCADE parameters,

enter the following combinations of

keys:

- to scroll through the parameters press

buttons

and

- to change the parameter settings,

press buttons

and

- to exit the menu and go back to the

ﬁrst screen, press one of the function

buttons, excluding RESET, or wait

approx. 60 seconds without pressing

any buttons.

2.11.6 Fault / malfunction codes

Every boiler in the cascade manages

its own faults as described in “Fault /

malfunction codes”.

The faults that generate a lockout in a

specific boiler are reset by pressing the

RESET button on the relevant boiler.

A lockout in the master boiler is reset

either by pressing the RESET button or

from a remote device.

For the master and slave no. 1 boilers,

specific faults can be checked for as

shown in the table:

Type No. Description

ALL 31

Cascade delivery probe

(SMC) fault

ALL 35

Communication fault

with RS485 boards

ALL 36

Number of boilers

connected in cascade

fault

ALL 70

Cascade stop general

fault

ALL 71

General fault with a

boiler in the cascade

CASCADE parameters for the master boile

Type

No.

Description

Range U/M Step Default

PAR A0 Choosing the cascade strategy

0 = ﬁxed set

1 = dynamic

set

- 0

PAR A1 Number of boilers installed 0……8 1 2

PAR A2 Reset operating hours of boiler in cascade - - / 1 - - -

PAR A3 Next boiler ignition threshold 45 …..90 % 1 70

PAR A4 Last ignited boiler shutdown threshold 10 …..40 % 1 30

PAR A5 Timeout for reaching the ignition threshold (time for PAR A3 check) 10 …..240 Sec 1 120

PAR A6 Timeout for reaching the shutdown threshold (time for PAR A4 check) 10 …..240 Sec 1 180

PAR A7

Offset for setpoint required from boilers for heating request (only for PAR A0 =

0 – ﬁxed set)

0……10 °C - 0

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