17 | VWG-50-Installation Manual
1 x 200ms short blink
Power on
2 x 200ms short blinks
Power on and card memory initialized properly
3 x 200ms short blinks
Power on, card memory initialized properly and serial
communication with VWG main board active
4 x 200ms short blinks
Power on, card memory initialized properly, serial
communication with VWG main board active and wireless
networks started successfully
4 x 200ms short blinks
and 1 x 1500ms long
blink
Power on, card memory initialized properly, serial
communication with VWG main board active, wireless networks
started successfully and wireless communication with
controllers active
M
AINTAINING THE
VWG
This section provides information on the following topics:
1. Cleaning
2. Required Battery Maintenance
3. Replacement
Parts
4. Replacing the VWG base assembly
5. Returning a Defective Unit
1) Cleaning
If dust or metal filings are present inside the unit, clean with VACuum or compressed air.
Otherwise, no cleaning inside the unit is required. Optionally, if the cover becomes dirty,
you can wipe it with a damp cloth and mild detergent.
2) Required Battery Maintenance
Battery life expectancy is a function of its discharge cycles (the number of discharges and
their depth) and the ambient temperature of the battery during normal operation. In most
applications, the battery should see relatively few discharges. Therefore, ambient
temperature has more to do with determining the life expectancy of the battery than does
any other factor. If the VWG is installed in a conditioned space, the battery should provide
dependable service for approximately three years (average). In an environment where the
operating temperature is higher (that is, 50
º
C or 122
º
F), you should only expect the battery
to last approximately one year.
The NiMH battery in the VWG controller is fully discharged when factory shipped.
Additionally, NiMH batteries lose charge over time if not kept trickle-charged (for more
details, see “About the Battery,”). Therefore, even a new unit (or replacement battery) will
require up to 18 hours of powered operation before it can provide reliable backup power (is
at full charge).
3) Standard Replacement Parts
Standard replacement parts are listed in Table 4 and can be ordered from stock without
restriction. Standard replacement parts cannot be returned for credit and should be
disposed of in an appropriate manner.
