Generac QT User Manual

Page of 56
COLD WEATHER KIT
For cold climates, optional cold weather kit (part 
number 0F6148) is recommended. The kit includes:
• Battery Warmer
•  4” Junction Box with hardware
•  6 qt. pack 5W-30 synthetic oil (engine)
RECONFIGURING THE FUEL SYSTEM
NOTE:
All models are configured for natural gas or LP 
vapor from the factory.
To reconfigure the fuel system from NG to LP, follow 
these steps:
1.  Turn the main gas supply off.
2.  Remove the carburetor fuel hose from the outlet 
port (Port 1) of the demand regulator (Figure 
6.2).
3.  Remove the brass hose fitting from the outlet port 
(Port 1) of the demand regulator.
4.  Remove pipe plug from Port 2.
5.  Install brass hose fitting into Port 2.
6.  Install pipe plug into Port 1.
7.  Connect carburetor gas hose to brass fitting.
8.  Tighten all clamps and plugs.
9.  Make sure fuel supply is of the proper pressure 
and type for configuration.
‹
‹
10. Reverse the procedure to convert back to natural 
gas.
11. The Dip switch inside the control panel must be 
in the LP or NG position when switching to differ-
ent fuels.
Figure 6.2 — Reconfigure the Fuel System
NG FUEL SYSTEM
LP FUEL SYSTEM
Port 1
Port 2
FUEL HOSE
BRASS HOSE
          FITTING
HOUSING
   PORTS
OUT
PORT 2
PLUG
FUEL HOSE
BRASS HOSE
          FITTING
HOUSING
   PORTS
PLUG
OUT
PORT 1
NOTE:
Port 1 is for NG only and Port 2 is for LP vapor 
only. No provision for dual fuel has been made.
DANGER
  Serious injury or damage may occur if not con-
figured properly. Please consult an Authorized 
Dealer with any questions.
TO 
ALTERNATOR
NEUTRAL
GROUND
CIRCUIT 
BREAKER
NEUTRAL
Ground Level
Concrete Slab
STUB-UP AREA
See Install Dwg for
Dimensions
CONTROL PANEL
GENERATOR 
CONNECTION 
BOX
FRAME RAIL
N1
N2
23
194
186
178
 
To Generator Control Panel
Utility In
Load 
Out
Gen
N1
N2
23
194
183
178 
120 Volt +
Neutral 
Grd
Battery
Charger 
Input
Transfer Switch
       CIRCUIT BREAKER SIZE
KW     VOLTS    /    AMPS      LUG SIZE                  
20       240 1 Ø 
100 
#4 to 1/0      
20       208 3 Ø 
80 
#4 to 1/0
4- # 14 GA 
WIRES TO
GENERATOR
CONNECTION 
BOX
TO GENERATOR 
CONNECTION BOX
Figure 1 — Interconnections
6-2
Standby Generator Sets
Specifications
GenSpec013  Rev.
 B  11/05