area. All white LED's shall be operated by opening any cab door. The same lights shall be
provided with a red LED mode where the driver has switched control of the officer and crew area
red lighting.
STEP WELL LIGHTING
Four step well lights shall be supplied. The lights shall be Whelen OS Series white LEDs with
angled chrome plated covers, one in each step well. All step well lights shall be illuminated when
any door is opened and the battery selector switch is on.
OFFICER MAPLIGHT
A Federal Signal LF12ER map light shall be mounted on the A pillar on the Officer's side of the
cab.
HEATER / DEFROSTER
A 57,600 BTU heater with a three speed fan shall be mounted in the front of the cab, centered over
the windshield. This heater shall have six (6) adjustable vents to assure windshield defogging.
DEFROSTER FANS
Two (2) 6" windshield defroster fans shall be mounted on the overhead console, one each side of
the center of the cab.
45,000 BTU AIR CONDITIONING
A climate control system shall be furnished in the cab. The system shall consist of a 45,000 BTU
air conditioning evaporator centrally located on the rear of the engine doghouse.
The compressor is to be plumbed to a heavy duty truck, dual fan air conditioning condenser
mounted on the cab roof. The condensing unit shall have an aerodynamic shroud that is painted to
match the color of the cab roof. There shall be an extended life filter receiver/dryer with a pressure
relief valve installed to protect the system from contaminates, moisture, and high pressure. It is to
have a sight glass for visual inspection and ease of service.
Dual high performance 3-speed blowers shall provide a minimum of 700 CFM air flow. Each
blower is to be controlled separately. Four (4) forward facing and three (3) rear facing full
adjustable diffusers with shutoff capability shall be utilized to direct the air flow through the cab.
The air conditioning on/off switch, thermostat control, and blower switches shall be located on the
evaporator unit.
36,000 BTU SUPPLEMENTAL HEATER
A 36,000 BTU auxiliary heater shall be furnished inside the conditioning evaporator unit to provide
additional cab heating during cooler weather. The heater core is to be plumbed to the water lines of
the engine cooling system.
CAB INSULATION
Foam rubber type insulation shall be installed in the rear wall and the cab ceiling to provide a better
sound and heat barrier. The insulation shall be a minimum of 1" thick. The material shall be
compliant with FMVSS-302.
