Maxon Telecom MPB3328CNE - Manual (Page 8)

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 8
Figure 14
Figure 13
B - The following venting confi gurations may
be installed (see Figure 14):
1 - Vertical - Minimum overall height of the
vent system and appliance without an offset
must be 10' (2.54 m)
2 - With Offset -
a - Minimum overall height of the vent system
and appliance must be 12' (3.66 m) when an
offset up to 45 degrees from the vertical is
used. The lower part of the offset may start at
the fi replace fl ue collar.
b - Minimum overall height of the vent system
and appliance must be 15' (4.57 m) when an
offset, more than 45 degrees but less than 60
degrees from the vertical, is used. The lower
part of the offset may start at the fi replace
fl ue collar.
Maximum overall height of the vent system
and appliance should not exceed 40 feet
(12.19 m).
Install the B-vent system in accordance with
the vent manufacturer's instructions.
CAUTION: THIS APPLIANCE CANNOT BE
VENTED HORIZONTALLY.
Note: Refer to the vent manufacturers instal-
lation instructions for variations of venting
techniques. If common venting of several units
is contemplated, it should be discussed with an
architect and the local Building Department.
Do not place insulation materials within 1 in.
of the gas vent system.
Step 5. FIELD WIRING
Refer to Section A for millivolt appliances and
Section B for electronic appliances. The gas
valve is set in place and pre-wired at the factory
on both models.
A. SIT Millivolt Wiring
(See Figure 15) –
1. Select any of the following optional con-
trols: appliance-mounted (rocker switch) or
wall-mounted switch, thermostat, or one of
the optional remote control kits. If appliance-
mounted ON/OFF control is selected mount it
in the gas valve mounting bracket.
2. If wall-mounted ON/OFF control switch or
thermostat is selected mount it in a convenient
location on a wall near the fi replace.
3. Wire the control switch within the millivolt
control circuit using the 15 feet of 2 conductor
wire supplied with the unit . Caution: do not
connect the optional wall switch to a 120V
power supply.
4. Alternatively, the appliance may be operated
without the use of the controls indicated in
Instruction #1, solely by manipulating the gas
valve control knob. In order to use this method,
twist the free ends of the two conductor wire
(located in the lower compartment of the unit)
together as shown in Figure 15.
Note: The supplied 15 feet of 2 conductor wire
has one end of each conductor connected to
the gas valve circuit and the other end of each
conductor placed inside the control compart-
ment.
Type B-Vent - 4 in. (102 mm) for MPB 3328 Models,
5 in. (127 mm) for MPB 3530 / 4035 Models or 6 in.
(153 mm) for MPB 4540 Models
Securing
Screws
Flue Outlet
Collar
Step 4. INSTALL THE VENT SYSTEM
& EXTERIOR TERMINATION
In the United States, vent installation must
conform with local building codes. In the ab-
sence of local codes, vents must be installed
in accordance with the current edition of the
National Fuel Gas Code (ANSI-Z223.1).
In Canada, vent installation must conform with
local building codes. In the absence of local
codes, vents must be installed in accordance
with the current edition of the National Stan-
dard of Canada CAN/CGA-B149.1 or B149.2
Installation Code.
MPB-3328, MPB-3530, MPB-4035 and MPB-
4540 series fi replaces must be vertically
vented using listed type-B, double-walled
vent pipe with the proper diameter as listed
below and a listed vent termination.
Required Pipe Diameter:
MPB-3328 series: Requires 4 in. (102 mm)
MPB-3530 series: Requires 5 in. (127 mm)
MPB-4035 series: Requires 5 in. (127 mm)
MPB-4540 series: Requires 6 in. (152 mm)
A - Connect the proper size Type B-vent system
to the fi replace fl ue collar with three sheet
metal screws (No. 8 or larger). See Figure 13.
Then install the remainder of the Type B-vent
to the outside.
10 ft.
Minimum
Back View
Of Appliance
Vertical
Installations
Back View
Of Appliance
*12 ft. Min.
**15 ft. Min.
*with an offset up to 45 degrees
** with an offset greater than 45
degrees and up to 60 degrees
Offset
Installations
Figure 15
SIT Millivolt Wiring Diagram
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM105
°C – 18 GA. wire.
Thermopile
H
T
P
T
H
T
P
T
*TWIST WIRES “A” AND “B” TOGETHER TO OPERATE UNIT
SOLELY BY MANIPULATING THE GAS VALVE CONTROL KNOB;
OR CONNECT WIRES TO OPTIONAL ON/OFF SWITCH OR WALL
SWITCH OR THERMOSTAT OR REMOTE CONTROL RECEIVER
TO OPERATE UNIT.
*OPTIONAL ON/OFF SWITCH,
WALL SWITCH, THERMOSTAT
OR REMOTE CONTROL RECEIVER
A B
H
C
TI
W
S
TI
MI
L
WT BK
BK
BK
Schematic Representation Only