Johnson Controls VMA1930, Руководство по установке, Страница: 2 / 20

• Required length of 3.97 mm (5/32 in.) ID
pneumatic tubing and barbed fittings
VMA1930 physical features
The following figure displays the physical features
of the VMA1930, and the accompanying table
provides a description of the physical features and a
reference to further information where required.
Figure 1: VMA1930 Controller wiring terminations and physical features
Table 1: VMA1930 Feature Callout Numbers and
Descriptions
Callout Physical Features: Description and References
1
24 VAC, Class 2 Supply Power (see Supply power
terminal block )
2
Controller Number Rotary Switches (see Setting the
controller number ): can be numbered from 000 to 999
3 Binary Outputs, 24 VAC Triacs (see Table 3)
4
Configurable Outputs: Voltage Analog Output (0–10
VDC) and Binary Output (24 VAC Triac) (see Table 3)
5 Dual Port Fitting
6
Manual Override Button (see Mounting for information
about using manual override Button)
7
Controller Coupler (see Mounting for information about
using the controller coupler )
8
Coupler Bolt (see Mounting for information about
setting the coupler bolt )
Table 1: VMA1930 Feature Callout Numbers and
Descriptions
Callout Physical Features: Description and References
9
Universal Input: Voltage Analog Input (0–10 VDC)
Resistive Analog Inputs (0–600k ohm) (see Table 3):
0–2k Potentiometer
RTD: 1k Nickel, 1k Platinum, or A99B SI
NTC: 10K Type L (10K Johnson Controls Type II is
equivalent to Type L) or 2.252K Type II
Dry Contact Binary Input
10 SA Bus Terminal Block (see SA Bus terminal block )
11
Sensor Port (SA Bus) RJ-12 6-Pin Modular Jack (see SA
Bus port )
12 ETH2 Ethernet Port for BACnet/IP Communications
13 ETH1 Ethernet Port for BACnet/IP Communications
14 Captive Spacer and Screw
15 LED Status Indicators (see Table 7)
VMA1930 VAV Controller Installation Guide 2