Laars IGI-180R-10N, Installation And Operating Instruction Manual

Page: 9 / 68

9
SECTION III: GENERAL INFORMATION
FEATURES
The LAARS EVERHOT
®
IGI series tankless water heater is a high output, high efficiency
appliance, which heats the water continuously as hot water is being drawn for use. Unlike tank type
storage water heaters, this water heater does not store hot water. The burner operates whenever there is
a demand for hot water and is off when the hot water flow stops. Hot water is continuously supplied for
any length of time required, as long as the specified flow rates are not exceeded. There is no need to set
the temperature higher than required for sufficient capacity. The EVERHOT water heater has sufficient
capacity to supply several hot water faucets simultaneously. The hot water flow capability will be
dependent upon the temperature of the outlet water selected. More detail can be found at the beginning
of Section II, “Specifications” section in this Installation and Operating Instruction Manual. Your plumbing
professional should determine your hot water requirements before installing this water heater to be sure
the capacity is sufficient for your application.
•
The IGI series water heaters are designed to be installed on or near an outside wall for indoor
installation only. The water heater is compact (23 1/2” (59.7 cm) H x 13 5/8” (34.6 cm) W x 8”
(20.3 cm) D) and mounts on a wall using the supplied wall bracket. No floor space is needed and
the water heater can be mounted at a height convenient for servicing.
•
The weight is less than 50 pounds (23 Kg) and can be installed by 1 person.
•
The burners ignite within 3 seconds of water flow (1/2 gallon/minute (1.9 L/m) minimum) by direct
spark ignition. There is no standing pilot.
•
A variable speed combustion air blower forces the combustion air supply into the burner
compartment.
•
Direct vent design uses only outside air for combustion. The venting system is a coaxial design
requiring a single 5 1/4” (13.3 cm) hole through the outside wall or roof. Vent pipe fittings have
internal gaskets for a tight seal to prevent leakage of flue products and combustion air.
•
The burner flame is continuously monitored and modulated to match the heating requirements of
the water flow. Temperature and flow sensors continually monitor the water flow and outlet water
temperature and adjust the burner and combustion air blower to maintain temperature.
•
The IGI model series have a digital temperature control integrally mounted to project through the
front panel of the water heater. The outlet water temperature is adjustable from 98-160
°
F for
residential models (IGI-180R series) or 98-185
°
F for commercial models (IGI-180C series). The
front panel temperature control also displays fault codes if the water heater malfunctions to assist
with servicing the water heater. No installation is required for the main temperature control.
•
In addition to the main temperature controller, up to two optional additional temperature controls
are available on the residential models for setting the water temperature in the bathroom fixtures
with the same temperature range as the main control on the water heater.
•
The heat exchanger coil is provided with anti-freeze heaters for protection in cold climate
conditions to ambient temperatures as low as -30
°
F (-34
°
C). Drain solenoids should be installed
to drain the water heater in the event of a power failure.
•
The water heater is very quiet in operation.