Maradyne 5000 Series Installation Instructions

INSTALLATION INSTRUCTIONS for MARADYNE H-503012 & H-503024 HEATERS
PREPARATION & MOUNTING
Position the heater and determine if clearance and mounting
surfaces are adequate. Identify the engine cooling source and
return connections, then plan routing of the (2) heater hoses
such that they will not be damaged by sharp edges or abrasion.
Mark locations to drill for the mounting studs and core tubes
using the mounting template provided, then mount the heater.
COOLANT CONNECTIONS
The vehicle cooling system should be cool and drained prior
to heater connection. These heaters have one tube marked
"inlet" which must be connected to the coolant source and not
the return. Connecting heater inlet to the return line will reduce
heat output as much as 25%. Plan routing of the wiring and
5/8" heater hoses so they will not be damaged by sharp edges
or abrasions. When vehicle has come to normal operating
temperature for the first time with heater installed, the cooling
system will need to be "topped off" as air trapped during the
installation will have escaped.
ELECTRICAL CONNECTIONS
The heater electrical circuit must be fused for safety, with the
fuse placed as close to the vehicle's electrical connection as
possible. The recommended fuse for H-503012 is 7.5 amp, and
the recommended fuse for H-503024 is 5 amp. These heaters
have a separate ground (-) wire that must be utilized to complete
the electrical circuit. 16 gage wire is the correct wire for all
connections. The 3-speed fan of these heaters is controlled by a
switch as illustrated.
OUTSIDE DIMENSIONS & AIRFLOW
AIR
FLOW
7 - 1/16"
7 - 7/16"
R
MARADYNE Mobile Products
(PHONE) 216-265-8006 ext. 136
7 - 3/8"
4540 W. 160th STREET
(FAX) 216-362-6342
R
AVAILABLE PARTS:
PART NO.
TA8000720
TA9001515
D-001-686
D-001-686-24
M-62321-G1
When ordering parts please specify Model, Voltage
Part Number, and Description. Optional Defrost Kits
MFA-126 and MFA-127 available upon request.
SWITCH CONNECTIONS:
Red Wire
from Motor
Yellow Wire
(Medium)
from Motor
(Low)
MED (M)
TERMINAL
LOW (L)
TERMINAL
L
M
B
BATTERY
TERMINAL
CLEVELAND, OH 44135
www.maradynemobile.com
TA9001377_rev2 Sheet 1
DESCRIPTION
Heater Core
Fan Blade
Motor 12v
Motor 24v
3-Speed
Switch
Orange Wire
from Motor
(High)
HI (H)
TERMINAL
H
NOT
USED
C
011011