AAON RSMV ASM01686, Техническое руководство

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7
RSMV Technical Guide
INSTALLATION AND WIRING
Electrical and Environmental Requirements
General
Correct wiring of the Main Unit Controller and its modules is
the most important factor in the overall success of the controller
installation process. The Main Unit Controller and Modules are
factory installed and wired at the AAON factory. Some of the
following information may not apply to your installation if it was
pre-wired at the factory. However, if troubleshooting of the controller
or modules is required, it is a good idea to be familiar with the
system wiring.
Wiring
The modules must be connected to an 18-30 VAC power source of the
proper size for the calculated VA load requirements. All transformer
sizing should be based on the VA ratings listed in Table 1 , below.
NOTE: If the temperature at the controller is below -22ºF (-30ºC),
the display refresh rate could be less responsive.
WARNING:
When using a single transformer to power
more than one controller or expansion
module, the correct polarity must always
be maintained between the boards. Failure
to observe correct polarity will result in
damage to the Unit Controller, RSMV, and
any associated module.
Please carefully read and apply the following information when
wiring the Unit Controller, RSMV, and any associated module.
1. All wiring is to be in accordance with local and national
electrical codes and specifications.
2. All 24 VAC wiring must be connected so that all ground
wires remain common. Failure to follow this procedure
can result in damage to the controller and connected
devices.
3. Minimum wire size for 24 VAC wiring should be
18-gauge.
4. Minimum wire size for all sensors should be 24-gauge.
Some sensors require 2-conductor wire and some require
3-or 4-conductor wire.
5. Minimum wire size for 24 VAC thermostat wiring should
be 22-gauge.
6. Be sure that all wiring connections are properly inserted
and tightened into the terminal blocks. Do not allow wire
strands to stick out and touch adjoining terminals which
could potentially cause a short circuit.
7. When communication wiring is to be used to interconnect
HVAC Unit Controllers together or to connect to other
communication devices, all wiring must be plenum-
rated, minimum 18-gauge, 2-conductor, twisted pair with
shield. AAON can supply communication wire that meets
this specification and is color coded for the network or
local loop. Please consult your AAON distributor for
information. If desired, Belden #82760 or equivalent
wire may also be used.
8. Before applying power to the HVAC Unit Controller,
RSMVs, and any associated modules, be sure to recheck
all wiring connections and terminations thoroughly.
Powering Up
When the Controller and Modules are first powered up, the POWER
LED should light up and stay on continuously. If it does not light up,
check to be sure that you have 24 VAC connected to the controller,
that the wiring connections are tight, and that they are wired for the
correct polarity. The 24 VAC power must be connected so that all
ground wires remain common. If after making all these checks, the
POWER LED does not light up, please contact AAON Controls
Support for assistance.
Contr
ol
De
vice
V
olta
ge
V
A Load
Oper
ating
Temper
atur
e
Humidity
(Non-
Condensing)
RSMV
Controller
18-30VAC 18
-22°F to 158°F
-30ºC to 70ºC
0-95% RH
Inputs
Resistive Inputs require 10KΩ
Type 3 Thermistor
24VAC Inputs provide 4.7kΩ
Load
Outputs
Relay Outputs: 1 Amp
maximum per output.
Table 1: RSMV Controller Electrical and
Environmental Requirements