nor-tec Links 2 NHTC User manual

LINKS 2
NHTC OPTIONS
Installation and
Operation Manual
Includes installation, operation
maintenance and troubleshooting
information for your NHTC Nortec
LINKS2 Options.
2534674-A | 24 NOV 2009
Important: Read and save these instructions. This guide to be left with equipment.

Thank you for choosing NORTEC.
Proprietary Notice
This document and the information disclosed herein are proprietary data of WALTER MEIER LTD. Neither this
document nor the information contained herein shall be reproduced used, or disclosed to others without the
written authorization of WALTER MEIER LTD., except to the extent required for installation or maintenance of
recipient’s equipment. All references to the NORTEC name should be taken as referring to WALTER MEIER LTD.
Liability Notice
NORTEC does not accept any liability for installations of humidity equipment installed by unqualified personnel
or the use of parts/components/equipment that are not authorized or approved by NORTEC.
Copyright Notice
Copyright 2009, WALTER MEIER LTD. All rights reserved.
INSTALLATION DATE (MM/DD/YYYY)
MODEL #
SERIAL #
CYLINDER #

Contents
1 Installation
1 Overview
1 Multi-Unit Systems
2 Wiring
4 Network Integration
17 Start-Up Checklist
18 Troubleshooting
18 Indicator Lights
23 Replacement Parts
27 Wiring Diagrams

Installation |1
Overview
The NHTC NORTEC Links 2 Option allows for the integration of a NHTC Series humidifier within a
BACnet, Johnson N2 or LonWorks network and allows those units to concurrently be monitored via
the NORTEC OnLine interface. This option features a NORTEC OnLine module co-existing with a
gateway that has the capability of converting information from the host Modbus protocol to a
specified secondary protocol.
The following protocol options are available, and must be specified at time of order:
Table 1: Protocol Options
Protocol
BACnet MS/TP
BACnet / IP
Johnson N2
LonWorks
The Nortec Links2 package also includes Nortec OnLine. Nortec OnLine is an advanced web
monitoring package that allows authorized users to remotely monitor humidifier status and
performance from anywhere with an internet connection. Nortec OnLine is available with an
optional service that, among other things, includes factory technicians monitoring the units
weekly. Even if the OnLine service is not ordered, the units can still be connected to an viewed
online at www.norteconline.com For information specifically related to Nortec OnLine consult the
accompanying OnLine manual or your local representative.
Multi-Unit Systems (“Master/Slave”)
Up to 8 humidifiers can be chained and monitored through a single Links 2 package. In this
configuration, the unit with the Links 2 package is designated the “Master Unit”, while the
remaining 7 humidifiers are configured as “Slaves”. The master unit is connected to the Building
Management Systems (BMS). Each unit is separately addressed, it is possible to monitor and
control each unit individually.
Different networking configurations may be achieved depending on the type of network being
used. One networking example could have a Gateway installed inside the lead unit, which could
then be daisy-chained to successive units. In turn, the lead unit would connect to a Building
Management System (BMS) network via a shielded, twisted-pair connection. Please see wiring
section for additional detail. A second example could have a series of units directly connected to
an Ethernet network. This is only possible for BACnet communication and is essentially referred to
as a BACnet/IP configuration.

2|Installation
Wiring
BACnet MS/TP, Johnson N2, and LonWorks
Links 2 is pre-installed and factory wired. Connections must be made between the master
humidifier and the BMS, and the master humidifier and any slaves that may be present.
Connections to the BMS are through terminals A and B on the Links 2 terminal strip for BACnet
MS/TP, Johnson N2, and LonWorks. The shields should also be connected. Refer to the wiring
diagrams in this manual.
Table 2 refers to the recommended wire types and maximum recommended lengths from the
Nortec Links 2 module to the Building Management system. Communication between the
humidifiers and Nortec Links 2 will occur via a EIA-485 signal type. Nortec recommends using a
18-24 AWG shielded, 120 twisted pair wire between the lead humidifier and each of the slave
humidifiers. Total cable length runs between the Nortec Links 2 module and the furthest slave
humidifier should not exceed 2,000 feet. Signal boosters or repeaters may be necessary for
longer wire runs or where electrical noise interference is prevalent.
Table 2: Recommended Wire Types and Lengths
Protocol
Signal
Type
Polarity
Recommended
Cable
Maximum Recommended
Distance from NORTEC
Module
A
B
BACnet MS/TP
EIA-485,
2-wire
Net +
Net -
18-24 AWG
Shielded, Twisted
Pair
120 Impedance
2300 ft at 9.6 kbps
2000 ft at 38.4 kbps
Johnson N2
LonWorks
EIA-232,
2-wire
Tx
Rx
18-24 AWG
Twisted Pair
120 Impedance
Should not exceed 50 ft.
BACnet/IP
LAN
standard
N/A
N/A
CAT.5E cable with
RJ-45 termination
Depends on cable
manufacturer

Installation |3
BACnet/IP
A standard CAT-5E cable with an RJ-45 (Ethernet) jack is to be connected to port 3,4, or 5 on the
gateway. Refer to wiring diagrams in this manual.
Cable Shielding
The cable’s shield should be connected to the shield terminal at the BMS system only, and not the
Links 2 module.
As well the cable shield should be connected at the lead unit only and not at subsequent units.
For long chains the shield would appear as:
Unit 2 to Master - Shield connected at master only.
Unit 3 to Unit 2 - Shield connected at unit 2 only.
Unit 4 to Unit 3 - Shield connected at unit 3 only.
And so forth.
Gateway Configuration
Links 2 is configured for each protocol at the factory, prior to final testing. Baud rates are
adjusted to the following values by default:
Table 3: Baud Rates
Protocol
Default Baud Rates
BACnet MS/TP
38.4 kbps
BACnet / IP
10BaseT
Johnson N2
9.6 kbps
LonWorks
38.4 kbps
Links 2 packages require network addresses in order to communicate with a BMS system. In
most cases addresses information is factory configured during final testing. If the humidifiers
were ordered before BMS address information was available, Links 2 would be figured to a default
address. Please contact the factory for the configuration tools to allow field modification of the
address parameters.

4|Installation
Network Integration
LonWorks.xif file
To facilitate the integration of a LonWorks unit within a network, it may be desirable to obtain an
External Interface File (XIF). Files of type .xif are used to convey the resources, specific objects
and data types which a LonWorks device possesses. The .xif file allows a network integrator to
simulate the presence of a networked humidifier even if it is not yet physically connected to the
network. In fact, if the integrator has the .xif files of all network devices, a complete system could
be simulated and configured off-line. Once the configuration is done, the integrator's software tool
can be connected to the actual system and the configuration information can be downloaded. If a
.xif file is required prior to installing a LonWorks-enabled humidifier, please contact the factory to
obtain it.
BACnet Pics and Bibs
The Protocol Implementation Conformance Statement or “PICS” describes the BACnet capabilities
of a particular BACnet implementation. It is a written document, created by the manufacturer of a
device, which identifies the particular options specified by BACnet that are implemented in the
device.
BACnet Interoperability Building Blocks (BIBBs) describe a list of services a BACnet device
provides. The main areas that the building blocks are concerned with include: data sharing,
trends, schedules, device and system management. BIBBs help specify the interoperability
capabilities of a BACnet device. Please contact the factory to obtain a PICS statement or BIBBs
profile.
NORTEC OnLine
Firewall Port 5222 must be open to TCP traffic in order for NORTEC OnLine to communicate
properly.
Variable Definition
In the variable name, “_x”denotes the humidifier number. If there is only one humidifier, all variable names will
end in “_1”. If two units are networked together, see Figure 4, the second unit’s variable names will end in “_2”.
For 3 networked units, “_3” and so on. If unsure of the unit number, each unit will have a label, in the electrical
compartment close to the terminal strip, indicating the device instance of each humidifier.
NORTEC Links 2 is capable of communicating a variety of variables for each unit that is connected
to it. For a variable listing and definition refer to Table 4. Network variable addresses for the
humidifiers may be seen in Table 5 to Table 12.

Installation |5
Table 4: Variable Definitions
Variable Name
R=Read
W=Write
Description
LonWorks SNVT
nvoHourOpt_x
R
Analog Value
Indicates the number of hours the
humidifier cylinder has been in
operation.
SNVT_count_inc
nvoCapLimit
R
Analog Value
Reads to capacity limitation
applied to the unit output.
(50-100%)
SNVT_switch
nvoRHDem1_x
R
Analog Value
Reads Ch.1 input signal in %RH or
demand to humidifier.
(0-100%)
SNVT_switch
nvoSet1_x
R
Analog Value
Reads Ch.1 setpoint setting.
(10-90%)
SNVT_switch
nvoRHDem2_x
R
Analog Value
Reads Ch.2 input signal in %RH or
demand to humidifier.
(0-100%)
Unit must be configured for dual
channel operation.
SNVT_switch
nvoSet2_x
R
Analog Value
Reads Ch.2 setpoint setting.
(10-90%)
Unit must be configured for dual
channel operation.
SNVT_switch
nvoSysDemand_x
R
Analog Value
Reads humidifier system demand.
(0-100%)
SNVT_switch
nviCapLimit
R
Analog Value
Sets the humidifier’s unit capacity.
(50-100%)
nviRHDem1_x
W
Analog Value
Writes Ch.1 demand or %RH level.
Allows BMS control of humidifier
output. (0-100%)
Unit must be configured for
networked demand
SNVT_switch
nviRHDem2_x
W
Analog Value
Writes Ch.2 demand or %RH level.
Allows BMS control of humidifier
output. (0-100%)
Unit must be configured for
networked demand
SNVT_switch
nviSet1_x
W
Analog Value
Writes Ch.1 setpoint (0-90%)
SNVT_switch
nviSet2_x
W
Analog Value
Writes Ch.2 setpoint (0-90%)
SNVT_switch
nvoFault_x
R
Binary Value
Indicates unit fault status.
0=no fault, 1=fault.
SNVT_switch
nvoHWSensor_x
R
Binary Value
Indicates if a high-water level
condition exists in the humidifier
cylinder.
0=normal, 1=high water condition

6|Installation
Table 4: Variable Definitions - CONTINUED
Variable Name
R=Read
W=Write
Description
LonWorks SNVT
nvoNetSensor_x
R
Binary Value
Reads configuration status for
network-enabled sensing or
control.
0=%RH or %demand input is not
from the network
1=%RH or %demand input is from
the network
SNVT_switch
nvoDisable_x
R
Binary Value
Reads remote disable status.
0=humidifier enabled,
1=humidifier disabled by network
SNVT_switch
nvoSecurity_x
R
Binary
Indicates security loop status.
0=Sec. loop open,
1=Sec. loop closed
SNVT_switch
nvoService_x
R
Binary Value
Reads service requirement status.
0=no service required,
1=service required
SNVT_switch
nvoStatus_x
R
Binary Value
Reads humidifier status.
0=standby, 1=humidifying.
SNVT_switch
nvoConnection_x
R
Binary Value
Indicates that the NORTEC Links
module is communicating with the
Humidifier
SNVT_switch
nviDisable_x
W
Binary Value
Writes remote disable status.
0=humidifier enabled,
1=humidifier disabled from
network
SNVT_switch
nviNetSensor _x
W
Binary Value
Writes configuration status for
network-enabled sensing or
control.
0=%RH or %demand input is not
from the network
1=%RH or %demand input is from
the network
SNVT_switch
Table 5: Humidifier Variable Addresses –Unit #1

Installation |7
NHTC LINKS 2 Variable Listing
Default BACnet/IP Address: 192.168.10.11; Subnet: 255.255.255.0
Default BACnet/MSTP Address: 78
Default Johnson N2 Address: 174
Unit #1
BACnet
Lonworks
N2
Variable Name
Type
Instance
SNVT
SNVT #
NV Index
Type
Instance
nvoHourOpt_1
AV
1
time_hour
124
1
AI
1
nvoCapLimit_1
AV
2
lev_percent
81
2
AI
2
nvoRHDem1_1
AV
3
lev_percent
81
3
AI
3
nvoSet1_1
AV
4
lev_percent
81
4
AI
4
nvoRHDem2_1
AV
5
lev_percent
81
5
AI
5
nvoSet2_1
AV
6
lev_percent
81
6
AI
6
nvoSysDemand_1
AV
7
lev_percent
81
7
AI
7
nviCapLimit_1
AV
8
lev_percent
81
8
AO
8
nviSet1_1
AV
9
lev_percent
81
9
AO
9
nviSet2_1
AV
10
lev_percent
81
10
AO
10
nviRHDem1_1
AV
11
lev_percent
81
11
AO
11
nviRHDem2_1
AV
12
lev_percent
81
12
AO
12
nviDisable_1
AV
13
switch
95
20
AO
13
Expansion_1
AV
14
N/A
N/A
N/A
AO
14
Expansion_1
AV
15
N/A
N/A
N/A
AO
15
nvoFault_1
BV
1
switch
95
13
Binary In
1
nvoHWSensor_1
BV
2
switch
95
14
Binary In
2
nvoNetSensor
BV
3
switch
95
15
Binary In
3
nvoDisable_1
BV
4
switch
95
16
Binary In
4
nvoSecurity_1
BV
5
switch
95
17
Binary In
5
nvoService_1
BV
6
switch
95
18
Binary In
6
nvoStatus_1
BV
7
switch
95
19
Binary In
7
Expansion_1
BV
8
N/A
N/A
N/A
Binary Out
8
nviNetSensor_1
BV
9
switch
95
21
Binary Out
9
nvoConnection_1
BV
10
switch
95
22
Binary Out
10
Expansion_1
BV
11
N/A
N/A
N/A
Binary Out
11
Expansion_1
BV
12
N/A
N/A
N/A
Binary Out
12
Expansion_1
BV
13
N/A
N/A
N/A
Binary Out
13
Expansion_1
BV
14
N/A
N/A
N/A
Binary Out
14
Expansion_1
BV
15
N/A
N/A
N/A
Binary Out
15
Table 6: Humidifier Variable Addresses - Unit #2
Unit #2
BACnet
Lonworks
N2

8|Installation
Variable Name
Type
Instance
SNVT
SNVT #
NV Index
Type
Instance
nvoHourOpt_2
AV
16
time_hour
124
23
AI
16
nvoCapLimit_2
AV
17
lev_percent
81
24
AI
17
nvoRHDem1_2
AV
18
lev_percent
81
25
AI
18
nvoSet1_2
AV
19
lev_percent
81
26
AI
19
nvoRHDem1_2
AV
20
lev_percent
81
27
AI
20
nvoSet2_2
AV
21
lev_percent
81
28
AI
21
nvoSysDemand_2
AV
22
lev_percent
81
29
AI
22
nviCapLimit_2
AV
23
lev_percent
81
30
AO
23
nviSet1_2
AV
24
lev_percent
81
31
AO
24
nviSet2_2
AV
25
lev_percent
81
32
AO
25
nviRHDem1_2
AV
26
lev_percent
81
33
AO
26
nviRHDem2_2
AV
27
lev_percent
81
34
AO
27
nviDisable_1
AV
28
switch
95
42
AO
28
Expansion_2
AV
29
N/A
N/A
N/A
AO
29
Expansion_2
AV
30
N/A
N/A
N/A
AO
30
nvoFault_2
BV
16
switch
95
35
Binary In
16
nvoHWSensor_2
BV
17
switch
95
36
Binary In
17
nvoNetSensor_2
BV
18
switch
95
37
Binary In
18
nvoDisable_2
BV
19
switch
95
38
Binary In
19
nvoSecurity_2
BV
20
switch
95
39
Binary In
20
nvoService_2
BV
21
switch
95
40
Binary In
21
nvoStatus_2
BV
22
switch
95
41
Binary In
22
Expansion_2
BV
23
N/A
N/A
N/A
Binary Out
23
nviNetSensor_2
BV
24
switch
95
43
Binary Out
24
nvoConnection_2
BV
25
switch
95
44
Binary Out
25
Expansion_2
BV
26
N/A
N/A
N/A
Binary Out
26
Expansion_2
BV
27
N/A
N/A
N/A
Binary Out
27
Expansion_2
BV
28
N/A
N/A
N/A
Binary Out
28
Expansion_2
BV
29
N/A
N/A
N/A
Binary Out
29
Expansion_2
BV
30
N/A
N/A
N/A
Binary Out
30

Installation |9
Table 7. Humidifier Variable Addresses -Unit #3
Unit #3
BACnet
Lonworks
N2
Variable Name
Type
Instance
SNVT
SNVT #
Element
Type
Instance
nvoHourOpt_3
AV
31
time_hour
124
45
AI
31
nvoCapLimit_3
AV
32
lev_percent
81
46
AI
32
nvoRHDem1_3
AV
33
lev_percent
81
47
AI
33
nvoSet1_3
AV
34
lev_percent
81
48
AI
34
nvoRHDem1_3
AV
35
lev_percent
81
49
AI
35
nvoSet2_3
AV
36
lev_percent
81
50
AI
36
nvoSysDemand_3
AV
37
lev_percent
81
51
AI
37
nviCapLimit_3
AV
38
lev_percent
81
52
AO
38
nviSet1_3
AV
39
lev_percent
81
53
AO
39
nviSet2_3
AV
40
lev_percent
81
54
AO
40
nviRHDem1_3
AV
41
lev_percent
81
55
AO
41
nviRHDem2_3
AV
42
lev_percent
81
56
AO
42
nviDisable_3
AV
43
switch
95
64
AO
43
Expansion_3
AV
44
N/A
N/A
N/A
AO
44
Expansion_3
AV
45
N/A
N/A
N/A
AO
45
nvoFault_3
BV
31
switch
95
57
Binary In
31
nvoHWSensor_3
BV
32
switch
95
58
Binary In
32
nvoNetSensor_3
BV
33
switch
95
59
Binary In
33
nvoDisable_3
BV
34
switch
95
60
Binary In
34
nvoSecurity_3
BV
35
switch
95
61
Binary In
35
nvoService_3
BV
36
switch
95
62
Binary In
36
nvoStatus_3
BV
37
switch
95
63
Binary In
37
Expansion_2
BV
38
N/A
N/A
N/A
Binary Out
38
nviNetSensor_3
BV
39
switch
95
65
Binary Out
39
nvoConnection_3
BV
40
switch
95
66
Binary Out
40
Expansion_3
BV
41
N/A
N/A
N/A
Binary Out
41
Expansion_3
BV
42
N/A
N/A
N/A
Binary Out
42
Expansion_3
BV
43
N/A
N/A
N/A
Binary Out
43
Expansion_3
BV
44
N/A
N/A
N/A
Binary Out
44
Expansion_3
BV
45
N/A
N/A
N/A
Binary Out
45

10 |Installation
Table 8: Humidifier Variable Addresses -Unit #4
Unit #4
BACnet
Lonworks
N2
Variable Name
Type
Instance
SNVT
SNVT #
Element
Type
Instance
nvoHourOpt_4
AV
46
time_hour
124
67
AI
46
nvoCapLimit_4
AV
47
lev_percent
81
68
AI
47
nvoRHDem1_4
AV
48
lev_percent
81
69
AI
48
nvoSet1_4
AV
49
lev_percent
81
70
AI
49
nvoRHDem1_4
AV
50
lev_percent
81
71
AI
50
nvoSet2_4
AV
51
lev_percent
81
72
AI
51
nvoSysDemand_4
AV
52
lev_percent
81
73
AI
52
nviCapLimit_4
AV
53
lev_percent
81
74
AO
53
nviSet1_4
AV
54
lev_percent
81
75
AO
54
nviSet2_4
AV
55
lev_percent
81
76
AO
55
nviRHDem1_4
AV
56
lev_percent
81
77
AO
56
nviRHDem2_4
AV
57
lev_percent
81
78
AO
57
nviDisable_4
AV
58
switch
95
86
AO
58
Expansion_4
AV
59
N/A
N/A
N/A
AO
59
Expansion_4
AV
60
N/A
N/A
N/A
AO
60
nvoFault_4
BV
46
switch
95
79
Binary In
46
nvoHWSensor_4
BV
47
switch
95
80
Binary In
47
nvoNetSensor_4
BV
48
switch
95
81
Binary In
48
nvoDisable_4
BV
49
switch
95
82
Binary In
49
nvoSecurity_4
BV
50
switch
95
83
Binary In
50
nvoService_4
BV
51
switch
95
84
Binary In
51
nvoStatus_4
BV
52
switch
95
85
Binary In
52
Expansion_2
BV
53
N/A
N/A
N/A
Binary Out
53
nviNetSensor_4
BV
54
switch
95
87
Binary Out
54
nvoConnection_4
BV
55
switch
95
88
Binary Out
55
Expansion_4
BV
56
N/A
N/A
N/A
Binary Out
56
Expansion_4
BV
57
N/A
N/A
N/A
Binary Out
57
Expansion_4
BV
58
N/A
N/A
N/A
Binary Out
58
Expansion_4
BV
59
N/A
N/A
N/A
Binary Out
59
Expansion_4
BV
60
N/A
N/A
N/A
Binary Out
60

Installation |11
Table 9. Humidifier Variable Addresses - Unit #5
Unit #5
BACnet
Lonworks
N2
Variable Name
Type
Instance
SNVT
SNVT #
Element
Type
Instance
nvoHourOpt_5
AV
61
time_hour
124
89
AI
61
nvoCapLimit_5
AV
62
lev_percent
81
90
AI
62
nvoRHDem1_5
AV
63
lev_percent
81
91
AI
63
nvoSet1_5
AV
64
lev_percent
81
92
AI
64
nvoRHDem1_5
AV
65
lev_percent
81
93
AI
65
nvoSet2_5
AV
66
lev_percent
81
94
AI
66
nvoSysDemand_5
AV
67
lev_percent
81
95
AI
67
nviCapLimit_5
AV
68
lev_percent
81
96
AO
68
nviSet1_5
AV
69
lev_percent
81
97
AO
69
nviSet2_5
AV
70
lev_percent
81
98
AO
70
nviRHDem1_5
AV
71
lev_percent
81
99
AO
71
nviRHDem2_5
AV
72
lev_percent
81
100
AO
72
nviDisable_5
AV
73
switch
95
108
AO
73
Expansion_5
AV
74
N/A
N/A
N/A
AO
74
Expansion_5
AV
75
N/A
N/A
N/A
AO
75
nvoFault_5
BV
61
switch
95
101
Binary In
61
nvoHWSensor_5
BV
62
switch
95
102
Binary In
62
nvoNetSensor_5
BV
63
switch
95
103
Binary In
63
nvoDisable_5
BV
64
switch
95
104
Binary In
64
nvoSecurity_5
BV
65
switch
95
105
Binary In
65
nvoService_5
BV
66
switch
95
106
Binary In
66
nvoStatus_5
BV
67
switch
95
107
Binary In
67
Expansion_2
BV
53
N/A
N/A
N/A
Binary Out
68
nviNetSensor_5
BV
69
switch
95
109
Binary Out
69
nvoConnection_5
BV
70
switch
95
110
Binary Out
70
Expansion_5
BV
71
N/A
N/A
N/A
Binary Out
71
Expansion_5
BV
72
N/A
N/A
N/A
Binary Out
72
Expansion_5
BV
73
N/A
N/A
N/A
Binary Out
73
Expansion_5
BV
74
N/A
N/A
N/A
Binary Out
74
Expansion_5
BV
75
N/A
N/A
N/A
Binary Out
75

12 |Installation
Table 10. Humidifier Variable Addresses - Unit #6
Unit #6
BACnet
Lonworks
N2
Variable Name
Type
Instance
SNVT
SNVT #
Element
Type
Instance
nvoHourOpt_6
AV
76
time_hour
124
111
AI
76
nvoCapLimit_6
AV
77
lev_percent
81
112
AI
77
nvoRHDem1_6
AV
78
lev_percent
81
113
AI
78
nvoSet1_6
AV
79
lev_percent
81
114
AI
79
nvoRHDem1_6
AV
80
lev_percent
81
115
AI
80
nvoSet2_6
AV
81
lev_percent
81
116
AI
81
nvoSysDemand_6
AV
82
lev_percent
81
117
AI
82
nviCapLimit_6
AV
83
lev_percent
81
118
AO
83
nviSet1_6
AV
84
lev_percent
81
119
AO
84
nviSet2_6
AV
85
lev_percent
81
120
AO
85
nviRHDem1_6
AV
86
lev_percent
81
121
AO
86
nviRHDem2_6
AV
87
lev_percent
81
122
AO
87
nviDisable_6
AV
88
switch
95
130
AO
88
Expansion_6
AV
89
N/A
N/A
N/A
AO
89
Expansion_6
AV
90
N/A
N/A
N/A
AO
90
nvoFault_6
BV
76
switch
95
123
Binary In
76
nvoHWSensor_6
BV
77
switch
95
124
Binary In
77
nvoNetSensor_6
BV
78
switch
95
125
Binary In
78
nvoDisable_6
BV
79
switch
95
126
Binary In
79
nvoSecurity_6
BV
80
switch
95
127
Binary In
80
nvoService_6
BV
81
switch
95
128
Binary In
81
nvoStatus_6
BV
82
switch
95
129
Binary In
82
Expansion_6
BV
83
N/A
N/A
N/A
Binary Out
83
nviNetSensor_6
BV
84
switch
95
131
Binary Out
84
nvoConnection_6
BV
85
switch
95
132
Binary Out
85
Expansion_6
BV
86
N/A
N/A
N/A
Binary Out
86
Expansion_6
BV
87
N/A
N/A
N/A
Binary Out
87
Expansion_6
BV
88
N/A
N/A
N/A
Binary Out
88
Expansion_6
BV
89
N/A
N/A
N/A
Binary Out
89
Expansion_6
BV
90
N/A
N/A
N/A
Binary Out
90

Installation |13
Table 11. Humidifier Variable Addresses -Unit #7
Unit #7
BACnet
Lonworks
N2
Variable Name
Type
Instance
SNVT
SNVT #
Element
Type
Instance
nvoHourOpt_7
AV
91
time_hour
124
133
AI
91
nvoCapLimit_7
AV
92
lev_percent
81
134
AI
92
nvoRHDem1_7
AV
93
lev_percent
81
135
AI
93
nvoSet1_7
AV
94
lev_percent
81
136
AI
94
nvoRHDem1_7
AV
95
lev_percent
81
137
AI
95
nvoSet2_7
AV
96
lev_percent
81
138
AI
96
nvoSysDemand_7
AV
97
lev_percent
81
139
AI
97
nviCapLimit_7
AV
98
lev_percent
81
140
AO
98
nviSet1_7
AV
99
lev_percent
81
141
AO
99
nviSet2_7
AV
100
lev_percent
81
142
AO
100
nviRHDem1_7
AV
101
lev_percent
81
143
AO
101
nviRHDem2_7
AV
102
lev_percent
81
144
AO
102
nviDisable_7
AV
103
switch
95
152
AO
103
Expansion_7
AV
104
N/A
N/A
N/A
AO
104
Expansion_7
AV
105
N/A
N/A
N/A
AO
105
nvoFault_7
BV
91
switch
95
145
Binary In
91
nvoHWSensor_7
BV
92
switch
95
146
Binary In
92
nvoNetSensor_7
BV
93
switch
95
147
Binary In
93
nvoDisable_7
BV
94
switch
95
148
Binary In
94
nvoSecurity_7
BV
95
switch
95
149
Binary In
95
nvoService_7
BV
96
switch
95
150
Binary In
96
nvoStatus_7
BV
97
switch
95
151
Binary In
97
Expansion_7
BV
98
N/A
N/A
N/A
Binary Out
98
nviNetSensor_7
BV
99
switch
95
153
Binary Out
99
nvoConnection_7
BV
100
switch
95
154
Binary Out
100
Expansion_7
BV
101
N/A
N/A
N/A
Binary Out
101
Expansion_7
BV
102
N/A
N/A
N/A
Binary Out
102
Expansion_7
BV
103
N/A
N/A
N/A
Binary Out
103
Expansion_7
BV
104
N/A
N/A
N/A
Binary Out
104
Expansion_7
BV
105
N/A
N/A
N/A
Binary Out
105

14 |Installation
Table 12. Humidifier Variable Addresses - Unit #8
Unit #8
BACnet
Lonworks
N2
Variable Name
Type
Instance
SNVT
SNVT #
Element
Type
Instance
nvoHourOpt_8
AV
106
time_hour
124
155
AI
106
nvoCapLimit_8
AV
107
lev_percent
81
156
AI
107
nvoRHDem1_8
AV
108
lev_percent
81
157
AI
108
nvoSet1_8
AV
109
lev_percent
81
158
AI
109
nvoRHDem1_8
AV
110
lev_percent
81
159
AI
110
nvoSet2_8
AV
111
lev_percent
81
160
AI
111
nvoSysDemand_8
AV
112
lev_percent
81
161
AI
112
nviCapLimit_8
AV
113
lev_percent
81
162
AO
113
nviSet1_8
AV
114
lev_percent
81
163
AO
114
nviSet2_8
AV
115
lev_percent
81
164
AO
115
nviRHDem1_8
AV
116
lev_percent
81
165
AO
116
nviRHDem2_8
AV
117
lev_percent
81
166
AO
117
nviDisable_8
AV
118
switch
95
174
AO
118
Expansion_8
AV
119
N/A
N/A
N/A
AO
119
Expansion_8
AV
120
N/A
N/A
N/A
AO
120
nvoFault_8
BV
106
switch
95
167
Binary In
106
nvoHWSensor_8
BV
107
switch
95
168
Binary In
107
nvoNetSensor_8
BV
108
switch
95
169
Binary In
108
nvoDisable_8
BV
109
switch
95
170
Binary In
109
nvoSecurity_8
BV
110
switch
95
171
Binary In
110
nvoService_8
BV
111
switch
95
172
Binary In
111
nvoStatus_8
BV
112
switch
95
173
Binary In
112
Expansion_8
BV
116
N/A
N/A
N/A
Binary Out
113
nviNetSensor_8
BV
114
switch
95
175
Binary Out
114
nvoConnection_8
BV
115
switch
95
176
Binary Out
115
Expansion_8
BV
116
N/A
N/A
N/A
Binary Out
116
Expansion_8
BV
117
N/A
N/A
N/A
Binary Out
117
Expansion_8
BV
118
N/A
N/A
N/A
Binary Out
118
Expansion_8
BV
119
N/A
N/A
N/A
Binary Out
119
Expansion_8
BV
120
N/A
N/A
N/A
Binary Out
120

Installation |15
Figure 1: Sample Humidification Applications
Room-Sensed %RH Feedback with Duct Hi-Limit Sensing
Figure 2: Sample Humidification Applications
Control Feedback (0-100%) with Duct Hi-Limit Sensing
NHTC
Configuration Variables
nviInputType_x = 1
nviNetSensor_x = 1
Control Variables
nviSet1_x = Room Setpoint (0-100%)
nviSet2_x = Hi-Limit Setpoint (0-100%)
nviRHDem1_x = Room %RH (0-100%)
nviRHDem2_x = Hi-Limit %RH (0-100%)
nviDisable_x = 1 Unit Disabled
= 0 Unit Enabled
Readable Variables
nvoStatus_x = 1 Humidifying
= 0 Standby
nvoService_x = 1 Service Required
= 0 No Service Required
nvoFault_x = 1 Fault
= 0 No Fault
nvoSysDemand_x = System Demand (0-100%)
nvoDisable_x = 1 Unit Disabled
= 0 Unit Enabled
Configuration Variables
nviInputType_x = 0
nviNetSensor_x = 1
Control Variables
nviSet1_x = Room Setpoint (0-100%)
nviSet2_x = Hi-Limit Setpoint (0-100%)
nviRHDem1_x = Room %RH (0-100%)
nviRHDem2_x = Hi-Limit %RH (0-100%)
nviDisable_x = 1 Unit Disabled
= 0 Unit Enabled
Readable Variables
nvoStatus_x = 1 Humidifying
= 0 Standby
nvoService_x = 1 Service Required
= 0 No Service Required
nvoFault_x = 1 Fault
= 0 No Fault
nvoSysDemand_x = System Demand (0-100%)
nvoDisable_x = 1 Unit Disabled
= 0 Unit Enabled
NHTC

16 |Installation
Figure 3: Sample Humidification Applications
Room-Sensed %RH Feedback with Duct High-Limit Sensing (0-10V Signal Directly to Humidifier) NORTEC Links 2
Start-up Checklist
Configuration Variables
nviInputType_x = 1
nviNetSensor_x = 0
Control Variables
nviSet1_x = Room Setpoint (0-100%)
nviSet2_x = Hi-Limit Setpoint (0-100%)
nviRHDem1_x = Room %RH (0-100%)
nviRHDem2_x = Hi-Limit %RH (0-100%)
nviDisable_X = 1 Unit Disabled
= 0 Unit Enabled
Readable Variables
nvoStatus_x = 1 Humidifying
= 0 Standby
nvoService_x = 1 Service Required
= 0 No Service Required
nvoFault_x = 1 Fault
= 0 No Fault
nvoSysDemand_x = System Demand(0-100%)
nvoDisable_x = 1 Unit Disabled
= 0 Unit Enabled
NHTC