Munters Green Expansion User manual

Installation Manual
Green Expansion
Relay Expansion
Ag/MIS/UmEN-2737-05/19 Rev 1.1
P/N: 116790
Green
Expansion

© Munters AB, 2020 2
Green Expansion
Manual for use and maintenance
Rev 1.1 05/2022
This manual for use and maintenance is an integral part of the apparatus together with the attached
technical documentation.
This document is destined for the user of the apparatus: it may not be reproduced in whole or in part,
committed to computer memory as a file or delivered to third parties without the prior authorization of the
assembler of the system.
Munters reserves the right to effect modifications to the apparatus in accordance with technical and legal
developments.

© Munters AB, 2020 3
Index
chapter page
1INTRODUCTION ------------------------------------------------------------------------------------------------------------------------------------------------- 4
1.1 Disclaimer-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4
1.2 Introduction----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4
1.3 Notes ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4
2GREEN EXPANSION BOX------------------------------------------------------------------------------------------------------------------------------- 5
2.1 Wiring---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5
2.2 Distances---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 8
3RELAY CONNECTION-------------------------------------------------------------------------------------------------------------------------------------- 9
4WARRANTY ---------------------------------------------------------------------------------------------------------------------------------------------------------11

© Munters AB, 2020 4
1Introduction
1.1 Disclaimer
Munters reserves the right to make alterations to specifications, quantities, dimensions etc. for production
or other reasons, subsequent to publication. The information contained herein has been prepared by
qualified experts within Munters. While we believe the information is accurate and complete, we make no
warranty or representation for any particular purposes. The information is offered in good faith and with
the understanding that any use of the units or accessories in breach of the directions and warnings in this
document is at the sole discretion and risk of the user.
1.2 Introduction
Congratulations on your excellent choice of purchasing a Green Expansion!
In order to realize the full benefit from this product it is important that it is installed, commissioned and
operated correctly. Before installation or using the fan, this manual should be studied carefully. It is also
recommended that it is kept safely for future reference. The manual is intended as a reference for
installation, commissioning and day-to-day operation of the Munters Controllers.
1.3 Notes
Date of release: July 2019
Munters cannot guarantee to inform users about the changes or to distribute new manuals to them.
All rights reserved. No part of this manual may be reproduced in any manner whatsoever without the
expressed written permission of Munters. The contents of this manual are subject to change without notice.

© Munters AB, 2020 5
2Green Expansion Box
CAUTION This unit must be installed inside, in a location protected from solar radiation and direct rain
The Green Expansion box acts as remote I/O terminals; it is connected to the main CPU through a
network connection and cannot function independently.
A maximum of three Expansion Boxes can be connected to an Green House or Green Climate upper port
network.
2.1 Wiring
The Green Expansion boxes can be connected as follows:
•RS-485 using an RCLP 485 X 2 (long range – see Figure 1):
oController side: Connect the upper port of the controller communication card (RCLP 485
X 2) to the Expansion box.
oExpansion box side: Connect the wires to the RS485 communication port located on the
Expansion box CPU (do not invert Rx and Tx wires).
Green Expansion boxes can be daisy chained or parallel.
Green Expansion boxes can only be daisy chained. In this case invert Rx and Tx only in the first
connection between the Controller and the first Expansion Box. In the connections between the Expansion
Boxes do not invert.

© Munters AB, 2020 6
Figure 1: Expansion card layout
Figure 2: Box # set to '1' for Expansion box #1
Figure 3: Box # set to '2' for Expansion box #2

© Munters AB, 2020 7
Figure 4: Box # set to '3' for Expansion box #3
Figure 5: Baud rate switches in 9600 mode
Table 1 presents all available states of switches '4' and '5' (see Figure 5).
Figure 5 presents a Baud rate of 9600 (see table below for further explanations)
'4' switch position
'5' switch position
Baud Rate
Low Low 2400
High Low 4800
Low High 9600
High High 19200
Table 1: Baud rate values
NOTE Note that Figures 1-4 apply to Figures 6-8.

© Munters AB, 2020 8
Figure 6: Expansion box wiring diagram - RS-485 connection (using an RCLP 485X2)
2.2 Distances
oFor one box:
2000 meter 9600 baud
2500 meter 4800 baud
3000 meter 2400 baud
oFor three boxes:
1200 meter 9600 baud
1800 meter 4800 baud
2400 meter 2400 baud

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3Relay Connection
o2400 Meter 2400 Baud
Figure 7: Relay connection

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Figure 8: Wrong relay connection
CAUTION Attention: Do not connect 24VAC transformer Common.