Thank you for purchasing a Munters VX51 and VX55 Fan with RC Cone and Munters Drive. Munters equipment
is designed to be the highest performing, highest quality equipment you can buy. With the proper installation and
maintenance it will provide many years of service.
Please Note:
To achieve maximum performance and insure long life from your Munters product it is essential that it be installed and
maintained properly. Please read all instructions carefully before beginning installation.
Warranty:
For Warranty claims information see the “Warranty Claims and Return Policy” form QM1021 available from the
Munters Corporation office at 1-800-227-2376 or by e-mail at aghort.info@munters.com.
Conditions and Limitations:
• Products and Systems involved in a warranty claim under the “Warranty Claims and Return Policy” shall have been
properly installed, maintained and operated under competent supervision, according to the instructions provided
by Munters Corporation.
• Malfunction or failure resulting from misuse, abuse, negligence, alteration, accident or lack of proper installation
or maintenance shall not be considered a defect under the Warranty
Before beginning installation, check the overall condition of the equipment. Remove packing materials, and examine all
components for signs of shipping damage. Any shipping damage is the customer's responsibility and should be reported
immediately to your freight carrier. Fan is shipped complete with all accessories. Remove shutter, guard and cone sections
before proceeding with installation.
Each Fan includes:
1 – Belt Drive Fan
1 – Cone
1 – Guard
1 – Shutter
1 – Hardware Package as follows:
HP1156 – 51”/55” Fan, One Piece Cone, PT/PV Shutter
IDQty.Cat. No.Description
[A]12KS2105#14 x 1.5” Lag Screw, SS
[B]8KS06501⁄4”-20 x 7⁄8” Truss Head Bolt, SS
[C]8KN17171⁄4”-20 Hex Flange, Nylock Nut, SS
[D]8KW30121⁄4” x 1” O.D. Flat Washer, SS
[A]
[B]
[C]
[D]
1.2 Fan Dimensions
G
H
I
J
C1
F1
D
K - Dia.
Fan Specifications: 60Hz shown (50Hz available)
Power: 230 VAC or 230/460 VAC
Phase: 1 or 3
Installing the one piece cone may require 2 people. If temperature is above 50°F then proceed to Step 5.
If temperature is below 50°F then proceed to
Step 4
Using Locking Sheet Metal Pliers bend the cone tabs outward to allow the cone to slide onto the fan easier.
See Figure 4.
Step 4.
51/55RC Cone
Step 5
Look for the “TOP” label on the Polycone and set the top of the Polycone on top of the fan orifice
and install (2) Truss Head Bolts [B] through holes in fan outlet through the slots in the cone at about
the 10 and 2 o’clock positions and fasten with Washers [C] and Flange Nuts [D]. Truss head of
each bolt must be on the inside of the fan outlet; washers and flange nuts must be on outside of cone.
See Figure 5A and 5B. Finger tighten nuts only at this time.
Work down the sides of the cone, sliding the cone tabs onto the fan until the bottom tab is in place. Keep
pressure on the cone to make sure tabs stay on the fan. Install (6) Truss Head Bolts [B], Washers [C] and
Flange Nuts [D] in the remaining holes in the fan outlet and slots in the cone to finish securing cone to fan.
See Figure 5B and Figure 6. Tighten all nuts at this time, making sure not to over tighten.
51/55 RC
Cone
Remaining Holes
Note:
If installing your existing guard in the new
Polycone, then proceed to Step 9. If installing
Figure 6
the new snap-in guard then proceed to Step 7.
Step 7
The snap-in guard has a slight conical shape to it so, when installed the center of the guard should protrude
Starting at the bottom of the cone, locate one of the guard tabs and put the guard tab through the guard slot
in the cone. See Figure 7B. Then work up around the guard and install each of the other guard tabs in each
of the corresponding guard slots. Some force may be required to snap the last tab into the last slot, pull out
on the center of the cone while pushing in on the guard tab until it snaps into place.
Cone
Guard
Guard Tab
Guard Tab
Step 9
If installing your existing guard into the new cone, locate the flat guard mounting pads on the cone and drill
9
a
⁄32” dia. hole in the center of each pad. Then insert existing guard into cone with the guard eyelets facing
away from you. Line up each eyelet with a hole in the guard pads. Secure guard to cone using (8) existing
Bolts and Nuts. See Figure 8A and 8B. Tighten all nuts at this time.
The Munters Drive Fan comes with a coil of electrical cable that is pre-wired to motor. Find the end
of the cable and route it outside the fan and connect it to the incoming power supply and/or the
safety cut-off switch. (Safety cut-off switch by others). See Figure 12A.
Junction Box
Electrical Cable
WARNING:Fan is designed to be operated with shutter in place. Do not apply power to fan without
codes. Fans used to ventilate livestock buildings or other rooms where continuous air
movement is essential should be connected to individual electrical circuits, with a minimum
of two circuits per room. For electrical connection requirements, refer to diagram on motor
nameplate and to information enclosed with the environmental control to be used.
All wiring should be installed in accordance with National, State, and Local electrical
High Voltage, disconnect power
before servicing.
Single Phase and Three Phase Munters Drives: Power supply for fans to have Circuit
Breaker or Fuse Protection. The installer must refer to NEC and local codes to ensure safety
and compliance. See Figure 12B & 12C.
If recommended lightning protection was purchased, wire it to the fan power supply as shown and secure the
lightning protection unit near the disconnect or the bus panel. See Figure 12B & 12C.
NOTE: A safety cut-off switch should be located adjacent to each fan.
The Munters Drive fan ships configured for simple ON/OFF operation. When electrical power is applied to
the main cable and the ‘RUN’ Switch is in the ‘ON’ Position, the fan will start and run at full speed.
See Figure 13A.
‘RUN’ Switch
Figure 13A
Default Operation Full Speed
***WARNING***
The Blue Box electrical enclosure must not be
removed from mounting bracket. Removing
Blue Box from the mounting bracket will void the
warranty. Any water or other damage to the
controller will not be covered if the Blue Box is
removed.
When making connections to Munters Drive Box, be sure to use the supplied watertight fittings with only
1 cable per fitting. If watertight fittings are not used or if 2 cables or more are in 1 watertight fitting,
equipment failure from water damage will not be covered under warranty. If 2 or more cables are used in
1 watertight fitting, they must be sealed on both sides of
If you are going to run the Munters Drive with a signal from a control, carefully remove 6 screws and the
cover and save to reinstall later. Carefully punch the knock-out from the bottom of the Munters Drive Box and
install the Watertight connector as shown. See Figure 13B and 13C.
Munters Drive Box
Munters Drive Box wall to prevent water infiltration.
To operate the Munters Drive On/Off with a control, Slide the ‘RUN’ switch, located on the circuit board in
the Munters Drive Box, to the ‘OFF’ position. Now wire an ‘ON’ command from the ‘COMMON’ terminal
to the input relay in the control and from the output of the control relay to the ‘RUN’ terminal in the Munters
Drive Box. See Figure 13A & 13D.
‘RUN’ Switch
Circuit Board in Munters Drive Box
Jumpers
Junction Box
(By Others)
Control
Relay
***WARNING***
Munters Drive Box
Figure 13D
On/Off Remotely
Munters Drive Box
***NOTE***
The Blue Box electrical enclosure must not be
removed from mounting bracket. Removing
Blue Box from the mounting bracket will void the
warranty. Any water or other damage to the
controller will not be covered if the Blue Box is
removed.
To operate the Munters Drive Off/Low/High with a control, slide the ‘RUN’ switch, located on the circuit
board in the Munters Drive Box, to the ‘OFF’ position. Now wire an ‘ON’ command from the ‘COMMON’
terminal to the input relay in the control and from the output of the relay to the ‘RUN’ terminal in the Munters
Drive Box. Then connect the output of the control relay for ‘LOW’ to the ‘REDUCED FLOW’ terminal in the
Munters Drive Box. See Figure 13E.
‘RUN’ Switch
Circuit Board in Munters Drive Box
Control
Relay
Figure 13E
Off/Low/High Remotely
***WARNING***
The Blue Box electrical enclosure must not be
removed from mounting bracket. Removing
Blue Box from the mounting bracket will void the
warranty. Any water or other damage to the
controller will not be covered if the Blue Box is
removed.
Munters Drive Box
***NOTE***
All Low Voltage wire must be shielded
cable. i.e. Belden 8770 or equivalent.
To Operate the Munters Drive variable with a 10-0V Signal, slide the ‘RUN’ switch, located on the circuit
board in the Munters Drive Box, to the ‘ON’ position. Connect wires from the ‘0-10V IN’ and ‘0-10V
COMMON’ terminals in the Munters Drive Box to the 10-0V output in the control. See Figure 13F.
‘RUN’ Switch
Circuit Board in Munters Drive Box
Jumper
10-0V
Output
In Control
***WARNING***
Munters Drive Box
Junction Box
(By Others)
Figure 13F
Variable Speed Operation
***NOTE***
The Blue Box electrical enclosure must not be
removed from mounting bracket. Removing
Blue Box from the mounting bracket will void the
warranty. Any water or other damage to the
controller will not be covered if the Blue Box is
removed.
To operate the Munters Drive Off/Variable with a 10-0V Signal, slide the ‘RUN’ switch, located on the circuit
board in the Munters Drive Box, to the ‘OFF’ position. Now wire an ‘ON’ command from the ‘COMMON’
terminal to the input relay in the control and from the output of the control relay to the ‘RUN’ terminal in
the Munters Drive Box. Also, connect wires from the ‘0-10V IN’ and ‘0-10V COMMON’ terminals in the
Munters Drive Box to the 10-0V output in the control. See Figure 13G.
‘RUN’ Switch
Circuit Board in Munters Drive Box
Control
Relay
10-0V
Output
In Control
Munters Drive Box
Junction Box
(By Others)
Figure 13G
On/Off with Variable Speed Operation
Munters Drive Box
WARNING:Fan is designed to be operated with shutter in place. Do not apply power to fan without
1) INITIAL START-UP: With electrical power off, verify that the fan propeller
turns freely and that all fasteners are secure. With shutter in place, turn on
electrical power and confirm that the fan operates smoothly.
4.
!
WARNING
2) TEMPERATUREADJUSTMENTS: Set the fan control to the temperature
shown on your Munters ventilation system drawing, or to a value which will
provide the desired environmental conditions.
4.2 Maintenance
The following inspection and cleaning procedures should be performed
monthly:
1) INSPECT PROPELLER: Check that propeller is secure on drive hub and that
there are no signs of damage. The blades are of a self-cleaning design and
should not require maintenance.
2) CLEAN regularly for best results:
• FAN MOTOR: Remove any dust accumulation from motor using a
brush or cloth. (DO NOT use a pressure washer). A clean motor will run
cooler and last longer. At the same time, verify that the motor is secure in
its mount.
• SHUTTER: Carefully clean dust from shutter and frame so that shutter
opens and closes freely. A brush or cloth should be used.
• GUARD: Clean any dust or feathers from fan guards using a brush.
Dirty guards can reduce airflow.
Moving parts, disconnect
power before servicing.
!
WARNING
High Voltage, disconnect
power before servicing.
!
WARNING
Do not power wash
electrical devices.
!
WARNING
3) CHECK FASTENERS: For safety, all fasteners should be inspected. Tighten
any loose connections.
4) INSPECT FAN CONTROL: With power disconnected, inspect all electrical
connections. Wiring should be secure and in good condition. Remove any
dust build-up from control case and sensor using a soft brush or cloth.
NEVER CLEAN ELECTRICAL EQUIPMENT WITH A PRESSURE WASHER!
Caution: There is a 10 second
delay for the fan to start when
an 'On' command is present.
• Fan Operating Insuffi cient Airfl ow
• Excessive Noise
• Excessive Vibration
!
WARNING
Moving parts, disconnect
power before servicing.
temperature
• Blown Fuse or open circuit breaker
• Propeller blade contacting fan
housing
• Fan control defective (i.e. Farm
Premium, etc.)
• Munters Drive motor/controller
issue
• Shutter or Damper door jammed
• Guard dirty/clogged
• 10-0V signal set incorrectly
• Propeller blade contacting fan
housing
• Motor loose on mount
• Propeller damaged
• Set to a lower temperature
• Replace fuse or reset breaker
• Realign motor in fan housing
• Repair or replace control
1. Verify AC voltage is present at fan.
2. Turn AC power off to fan for 1 minute
3. Verify Prop turns freely
a. If not contact Munters Product Support
b. If it turns freely go to next step
4. Turn AC power back on to fan
a. If starts up and runs, fan OK
•Periodically observe fan to verify it is still running
•If it continues to run, fan is OK
•If fan stops, look through clear window in drive
cover to check what drive display reads.
Contact Munters Product Support
b. If fan tries to start but stops, look through clear
window in drive cover to check what drive display
reads. Contact Munters Product Support
c. If fan doesn't try to start, verify 'On' command
signal is present at circuit board. Also, slide the
switch on the circuit board to the 'On' position.
In most climates, it is probable that the ventilation system will never need to operate at a total capacity
during the colder winter months. Consequently, it is advisable to “winterize” those fans which will not
be used in cold weather to avoid unnecessary heat loss and condensation.
To winterize, turn fan control “off”. Install the insulated closure panel over the fan intake. If you don’t
have an insulated closure panel, a piece of rigid insulation material can be used. Remember the
insulation panel must be removed before warmer weather returns.
NOTE: At least one single speed fan should be left uncovered and with power available to provide air
movement in the event of variable speed control difficulties.
6.2 Winter Weather Protection
To prevent cone or fan damage from snow or ice sliding off building roof, weather protection must be
provided. A weather shelter may be constructed to cover the entire fan, See Figure 14, or snow guards
Note: Snow guards are designed to prevent sudden, dangerous snow
and ice slides when attached to the building roof according to
manufacturers recommendations. The supplier listing above is given
as a reference only. Munters does not endorse any specific snow
guard product and no performance warranty is implied.