User Guide

TECHNICAL SPECIFICATIONS
1. Plug the Surge Guard 34830/34850 into an approved RV receptacle
and plug the RV power cord into the Surge Guard.
2. Verify the delay indicator is ashing, the LCD is counting. The LCD
will read between 102V and 132V.
3. Once caution light stops ashing (this takes 128 seconds), verify
RV power is on.
NOTE: USING WITH POWER CORD ADAPTERS
Purchased power cord adapters will work in most cases with Surge
Guard but TRC does not recommend using them for full load applications
due to the possibility of over-heating. Be advised that power cord
adapters have been known to cause res when Amps (electrical current)
Ratings are exceeded. Should you decide to use an adapter, our
recommendation is to check on the power cord from time to time to make
sure it is not overheating.
OPERATING INSTRUCTIONS
MODELS 34830 34850
TROUBLESHOOTING
Display for Normal Operation
During normal operation, the Surge Guard's LCD screen alternates
between two displays, a main screen showing voltages and currents
for power Lines 1 and 2 coming into the RV; and a secondary screen
showing whether power to the RV is ON or OFF, with voltage for Line 1
coming into the RV.
The main screen for Model 34850 (50Amp) will show the voltages and
currents for Lines 1 and 2, whereas Model 34830 will only show Line 1
since there is no Line 2 for that Model.
There are two rows or text lines on the LCD screen. The top row for the
main screen shows information for Line 1 in the following format: 120V
50A. This means that the voltage on power Line 1 coming into the RV
is at 120 volts and the RV is drawing 50 amps of current on Line 1. The
bottom row of the main screen for 34850 shows voltage and current for
Line 2.
FEATURES MODEL 34830 MODEL 34850
Operating Current 30 Amps 50 Amps
Operating Voltage 120 Volts 120/240 Volts
Maximum Watts 3600 Watts 12000 Watts
3 Mode Surge Protection Yes, L-N, L-G,N-G
Yes, L-N, L-N, L-G,
N-G, L-L
Energy Dissipation 2450 Joules 3850 Joules
Clamping Voltage < 300 VAC < 300 VAC
Maximum Spike Current 6500A per MOV 6500A per MOV
Over/Under Voltage Protection Yes Yes
Voltage Range 132/102V 132/102V
Trip Time 8-10 seconds 8-10 seconds
High Neutral Current Trip N/A 130%
Plug/Receptacle Temperature Trip 200ºF 200ºF
Time Delay for A/C 128 seconds 128 seconds
Reverse Polarity Check Yes Yes
Voltage On Ground Check Yes Yes
Power Indicator
LCD Voltage &
current reading
LCD Voltage &
current reading
Warranty 1 year 1 year
Corrosion Resistant Yes Yes
Easy Installation Yes Yes
Industrial Contactor Yes Yes
SYMPTOM CAUSE SOLUTION
Caution light is
ashing
There is a fault.
Read LCD for infor-
mation.
For reverse polarity
or voltage on
ground, move RV
to new electrical
source.
LCD reads less than
102V on rst line or
L1, L2 Low on either
line.
1. Only partial
power at 50
Amp source.
2. No power at
source
1. Move to a new
source
2. Use inverter
or generator
power
When rst plugging
into pedestal power,
caution light ashes
momentarily, then
goes out.
High or low voltage
is present at source.
Change site or use
inverter or generator
power
LCD DISPLAY INDICATORS
REPLACE
SURGE
Surge Expended
OPEN
GROUND
Open Ground
REVERSE
POLARITY
Any line wired to neutral
L1 High
118V 42A
115V 32A
L2 High
Voltage > 132
L1 High
L2 Low
L1 Low
118V 42A
Voltage < 102
NEUTRIP
CUR=65A
Current > 130%
CUR
HIGH
Current > 125%
PLUG
OVERHEAT
Temperature > 200ºF
120V 30A
RV STATUS ON/OFF
L1 120V
RV STATUS ON/OFF
L1 120V
Model 34850
Model 34830
Main Screen
Secondary Screen
The top row of the secondary screen for both models shows RV ON
or RV OFF, and the bottom row shows the voltage on power Line 1 as
L1=120V.
If the power coming into the RV is less than 102 volts on either Line 1
or 2, then the main screen will show L1 Low or L2 Low, in place of the
voltage or current. If the power coming in is greater than 132 volts, then
the main screen will show L1 High or L2 High.
Delay
011 Sec
Display During Fault Conditions
When the Surge Guard is powered up, the LCD
screen will display "Delay" and the elapsed time in
seconds until it reaches 128 seconds. After the delay
is completed, the unit will go to the Normal Operating screen showing
voltages and currents as described above. If there is a fault condition
during normal operation such as high or low voltage, the unit will display
that L1 or L2 is high or low; and when power comes back within range
(102V-132V) the unit will begin the Delay as described above before
returning to the main screen that shows the voltages and currents.
Reverse Polarity Conditions
If the polarity of the voltages coming into the RV is
reversed, then the Surge Guard unit will display
the REVERSE POLARITY until this condition is
REVERSE
POLARITY
corrected. Also, current or voltages on ground will be displayed as
reversed polarity.
120V 25A
120V 25A