Siemens LMV5 Quick Start Manual page 6

Product Offering 1-2
Base Unit Options (All are 120VAC)
LMV51.040C1 The most basic unit contains:
A flame safeguard
Highly accurate fuel air ratio control
A floating-bumping external load controller
is necessary for modulation (RWF40)
Actuators are connected on a CANbus
Can be wired to 4 actuators
Can run 3 actuators simultaneously
Minimun 2 actuators
LMV51.140C1 Same features as above, plus:
A load controller capable of
reading temperature and / or pressure
Modulates according to setpoint
Thermal shock protection (low fire and / or ramping start)
Remote modulation function
LMV52.240B1 Same features as above, plus:
Integrated O2 trim with efficiency calculation
Closed loop VSD control
Fuel meter reading (gas and oil)
Can be wired to 6 actuators
Can run 5 actuators simultaneously
Display Options
AZL52.40B1 Backlit display connects to the base unit via a 9 pin cable using
CANbus protocol and is required for operation of the base unit.
ModBUS communication via an RJ45 female jack on
the back of the display, using RS-232 protocol, is standard.
One AZL is necessary for each burner.
HMI (Human Machine Interface) Touch Screen display
communicates to the required AZL5 via ModBUS
communications.
The HMI can provide lead / lag control, trending, internet
communications, and boiler room efficiency optimization
in addition to many other advanced features.
One HMI can be used to interface with multiple AZL5s.
The HMI is not necessary for operation of the base unit.
LMV5 QSG Rev 4 Sec 1 Pg 2 www.scccombustion.com