Carrier AquaEdge 19DV series Start-Up, Operation And Maintenance Instructions Manual page 79

Two-stage back-to-back centrifugal liquid chillers with pic5 controls and hfo r-1233zd(e) 50/60 hz
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APPENDIX D — REMOVE CONNECTIVITY COMMISSIONING (cont)
Signal Evaluation
Test the antenna at various positions where it can possibly be
wall mounted. See Fig. H.
Fig. H — Antenna Mounting
At each position, wait at least 5 seconds, and then read the
state of the SIGNAL LED on the modem. The states and con-
clusions are given in Table B. Signal strength is measured in
DBm (decibel-milliwatts), and is always a negative number.
Table B —
Signal Evaluation
COLOR
STATE
GSM SIGNAL
RED
Flashing <-85
RED
Solid
-80 through -85
YELLOW Flashing -75 through -80
YELLOW Solid
-70 through -75 This location should work
GREEN
Flashing -65 through -70 This location should work well
GREEN
Solid
>-65
Even if a position is found with signal better than -75, sever-
al positions should be tested to find the best signal case. Also
consideration should be given to the accessibility of each posi-
tion for mounting. Consideration should also be given to the
routed length of the antenna cable — total length 196 in. (5 m).
For final mounting of the antenna secure the bracket to fixed
object and ensure that the antenna body itself does not make
contact with any objects.
ACTION
This location will not work
This location may work with a high-
gain antenna, but other options
should be explored first
This location may work, but there
may be occasional delays in sending
data, and it may not be robust over
time
This location is highly likely to work
well
Fig. I — PIC5 Home Screen and Setup Menu
Signal strength can also be evaluated with a smart phone if
operating on AT&T network. Path to see the phone's current
dBm signal varies by phone make and model.
Note that the network signal strength is outside of Carri-
er's control. If no suitable positions are identified with the
standard antenna cable, there are some alternate approaches
that can be considered such as trying a high gain antenna
(expect +3-5dBm but this option also has a longer cable),
using an AT&T signal boost device, or installing a Remote
Connectivity Accessory box (a separately powered box that
can be installed up to 100m [330 ft] from chiller).
The standard offering during the start-up of the chiller is
with the 5 meter cable equipment supplied with the chiller.
Any additional requirements to get the remote connectivity
fully functional will be part of the chiller installation cost, is
not part of the standard chiller start-up, and is not covered
under warranty.
Commissioning the Modem
As the Remote Connectivity feature involves communication
over the cellular network into a server, commissioning requires
support from support personnel at the Customer Gateway.
Fill out Table A, section 1, 2, and 4, and then call the Cus-
tomer Gateway at 877-963-1995 and advise that you are com-
missioning Cellular Remote Connectivity. They will assign a
case number and inform the support personnel. The assigned
support engineer will call back within a short time.
Receive Data for Configuring the PIC5 and
enter in PIC5 HMI
Required Data
There are two pieces of data that have to be provided by the
Customer Gateway support engineer and configured into the
PIC5 by the commissioning engineer.
BACnet Identifier
IP Address
These parameters should be recorded and kept for future use.
PIC5 Configuration
Hold fingers on the left side of the Home Screen. The
Setup menu will appear after about 10 seconds; see Fig. I.
79

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