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5

E

LECTRICAL

 C

ONNECTIONS

Consult the local power company and local codes before install-
ing this unit.  All wiring must be in accordance with the National
Electrical Code as well as all local codes.  Knockouts have been
provided on side and top of the cabinet for the installation of the
electrical conduit.  If the knockouts on the cabinet sides are used
for electrical conduit, an adapter ring must be used in order to
meet UL1995 safety requirements. Use Minimum Circuit Ampac-
ity and type of wire to determine proper wire size.  The unit MUST
be properly grounded.  A ground lug is provided in the unit.

Check all factory connections before connecting electrical power
to unit to ensure none were loosened or disconnected during ship-
ping and handling.

208/230 V

OLT

 L

INE

 C

ONNECTIONS

If heater kits will not be installed, remove the proper size knock-
out for the electrical conduit connection. Connect electrical con-
duit to the unit using two washers to make an approved connec-
tion. If the high voltage knockout is removed, please use the pro-
vided foam tape to seal the opening with the conduit.

The power supply wires must be connected to the red and black
power wiring.  Two wire nuts are provided in the bag assembly
for this connection. Wrap the wire nuts with electrical tape. (In-
sulated crimp type connectors, field supplied, may be substituted
for the wire nuts and electrical tape provided proper size connec-
tors are used.)  A ground wire MUST be connected to the ground
lug inside the unit.

L

OW

 V

OLTAGE

 W

IRING

A 24V-control voltage connects the air handler to the room ther-
mostat and condenser and must use low voltage wiring with cop-
per conductors.  A minimum 18 AWG wire must be used for in-
stallations up to 150 feet. Low voltage wiring must be connected
through the top of the cabinet or either side. See the “Thermo-
stat Wiring” section of this manual for typical low voltage wiring
connections. If the low voltage opening is being used, please re-
place the pre-installed cap with the bushing provided in the lit-
erature kit.

HIGH VOLTAGE!

T

O

 

PREVENT

 

PERSONAL

 

INJURY

 

OR

 

DEATH

 

DUE

 

TO

 

ELECTRICAL

 

SHOCK

DISCONNECT

 

THE

 

ELECTRICAL

 

POWER

 

BEFORE

 

ELECTRICALLY

 

CONNECTING

 

THE

 

UNIT

.

WARNING

T

O

 

AVOID

 

THE

 

RISK

 

OF

 

FIRE

 

OR

 

EQUIPMENT

 

DAMAGE

USE

 

COPPER

 

CONDUCTORS

.

WARNING

T

O

 

AVOID

 

THE

 

RISK

 

OF

 

PERSONAL

 

INJURY

WIRING

 

TO

 

THE

 

UNIT

 

MUST

 

BE

 

PROPERLY

 

POLARIZED

 

AND

 

GROUNDED

.

CAUTION

A

LL

 

WIRING

 

MUST

 

COMPLY

 

WITH

 

APPLICABLE

 

LOCAL

 

AND

 

NATIONAL

 

CODES

. T

YPE

 

AND

 

LOCATION

 

OF

 

FUSED

 

DISCONNECT

 

SWITCH

(

ES

MUST

 

COMPLY

 

WITH

 

ALL

 

APPLICABLE

 

CODES

 

AND

 

PROVIDE

 

OVERCURRENT

 

PROTECTION

 

AS

 

SHOWN

 

ON

 

THE

 

NAMEPLATE

.

WARNING

O

PERATION

 

ON

 208 V

OLT

 S

UPPLY

The unit transformer is factory connected for 230 V operation.  If
unit is to operate on 208 V, disconnect the red wire from terminal
3 of the unit transformer and connect them to terminal 2 of the
unit transformer.

24 V

OLT

 “L

EGACY

” T

HERMOSTAT

 W

IRING

NOTE:

  Wire routing must not interfere with the circulator blower

operation or routine maintenance.

The optional usage of a dehumidistat allows the modular blower’s
circulator blower to operate at a slightly lower speed during a com-
bined thermostat call for cooling and dehumidistat call for dehu-
midification.  This lower blower speed enhances dehumidification
of the conditioned air as it passes through the AC coil.  For proper
function, a dehumidistat applied to this modular blower must op-
erate on 24 VAC and utilize a switch which 

opens on humidity rise.

To install/connect a dehumidistat:

1. Turn OFF power to modular blower
2. Secure the dehumidistat neutral wire (typically the white

lead) to the screw terminal marked “DEHUM” on the
modular blower’s integrated control module.

3. Secure the dehumidistat hot wire (typically the black lead)

to the screw terminal marked “R” on the modular blower’s
integrated control module.

4. Secure the dehumidistat ground wire (typically the green

lead) to the ground screw on the modular blower.  

NOTE:

Ground wire may not be present on all dehumidistats.

5. Turn ON power to modular blower.

To enable the dehumidification function, move the dehumidifica-
tion dipswitch S7 from OFF to ON.

To enable the dehumidification function, move the dehumidifica-
tion dipswitch S7 from OFF to ON.

ON

OFF

Move to the
ON position

to enable

dehumidification

S5 S6 S7 S8

Figure 7 - DipSwitches

Содержание MBVC 1600

Страница 1: ...ty Read this booklet and any instructions packaged with accessories prior to installation Give this booklet to the user and explain its provisions The user should retain this booklet for future reference NOTE Upon start up in communicating mode the circuit board may display an Ec error This is an indication that the dip switches on the control board need to be configured in accordance with the Ele...

Страница 2: ...TAGE DISCONNECT ALL POWER BEFORE SERVICING MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH WARNING ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL ADJUST SERVICE OR REPAIR HEREINAFTER SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD SERVICE THE EQUIPMENT THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISIN...

Страница 3: ...arance is allowed on all sides for combustible materials Thirty six inches should be allotted on the door side for maintenance and service To reduce risk of rusting do not install the unit directly on the ground or on a floor that is likely to be wet In such environments the unit must be elevated by use of a sturdy nonporous material INSULATION To ensure efficient operation review the following pr...

Страница 4: ...the entire length of the unit Rubber isola tion pads may be used to reduce sound and vibration trans mission Ensure there is ample support for the unit and all attached ductwork NOTE Unit must be mounted with access panel facing the front as shown in following diagrams 2 If installed above a finished ceiling or living space be sure to put a secondary drain pan under the entire unit and pipe the dr...

Страница 5: ...IGH VOLTAGE TO PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK DISCONNECT THE ELECTRICAL POWER BEFORE ELECTRICALLY CONNECTING THE UNIT WARNING TO AVOID THE RISK OF FIRE OR EQUIPMENT DAMAGE USE COPPER CONDUCTORS WARNING TO AVOID THE RISK OF PERSONAL INJURY WIRING TO THE UNIT MUST BE PROPERLY POLARIZED AND GROUNDED CAUTION ALL WIRING MUST COMPLY WITH APPLICABLE LOCAL AND NATIONAL CODES TYPE...

Страница 6: ...r Handler Integrated Control Module Typical Single Stage Cool Single Stage Heat Heat Pump Thermostat Dehumidistat Optional G W1 W2 Y1 Y2 O DEHUM Remote Condensing Unit Single Stage HP NEU HOT W E R C G Y1 O R C W1 Y O Figure 10 Typical Single Stage Heat Pump with Auxiliary Emergency Heating 1 2 R C Air Handler Integrated Control Module Typical Two Stage Cool Two Stage Heat Heat Pump Thermostat Deh...

Страница 7: ...positioning switches 1 and 2 appropriately If airflow adjustment is required set dip switch S8 trim enable to ON trim enable default is off Then select the desired adjust tap by positioning switches S3 and S4 appropriately Refer to the following figure for switch positions and their corresponding taps Verify CFM by counting the number of times the green CFM LED blinks 5 Continuous fan speeds that ...

Страница 8: ...rflow OFF delay OFF OFF Figure 18 Profile D 7 If an electric heater kit has been installed determine the heater kilowatt kW rating Find the heater size in the table below Set dipswitches 9 10 and 11 for the installed heater as shown in the table below The adjust setting already established by the cooling speed selection also applies to the electric heater kit airflow Thus the electric heater airfl...

Страница 9: ... value during cool call when Dehum command is present To disable set S7 to OFF Continuous Fan Speed Use dip switches S12 and S13 to select one of 4 continuous fan speeds Tap A is 25 Tap B is 50 Tap C is 75 Tap D is 100 A 800 1200 B 1070 1600 C 1200 1800 D 1340 2000 A 670 1000 B 800 1200 C 940 1400 D 1070 1600 A 400 600 B 540 800 C 670 1000 D 800 1200 Model Low Stage Cool Tap High Stage Cool Cool S...

Страница 10: ...nsible for determining the airflow demand it calcu lates the demand and sends it to the ECM motor If the outdoor unit or thermostat is responsible for determining the demand it calculates the demand and transmits the demand along with a fan request to the indoor unit The indoor unit then sends the demand to the ECM motor Figure 21 lists the various ComfortNet systems the operating mode and airflow...

Страница 11: ...nced diagnostic troubleshooting features These advanced features are organized into a menu structure See the following MODULAR BLOWER AD VANCED FEATURES MENUS section for layout of menu shortcuts System System Operating Mode Airflow Demand Source Cooling Air Conditioner Heating Air Handler Continuous Fan Thermostat Cooling Heat Pump Heat Pump Heating Only Heat Pump HP Electric Heat Strips of Heat ...

Страница 12: ...ts are shown a maximum of 3 times DIAGNOSTICS Submenu Item Indication for Display Only not User Modifiable Model Number MOD NUM Displays the modular blower model number Serial Number SER NUM Displays the modular blower serial number Optional Software SOFTWARE Displays the application software revision IDENTIFICATION Submenu Item User Modifiable Options Comments Heat Airflow Trim HT TRM 10 to 10 in...

Страница 13: ...ne x None 1 Flash x Communications Failure x Communications Failure x Depress Learn Button x Verify that bus BIAS and TERM dipswitches are in the ON position x Depress once quickly for a power up reset x Depress and hold for 2 seconds for an out of box reset Red Communications LED 2 Flashes x Out of box reset x Control power up x Learn button depressed x None x None Off x No power x Communications...

Страница 14: ...s specified in shared data set HTR TOO SMALL EC x Heater kit selected via dipswitches is too small for heater kits in shared data set x Verify electric heat dipswitch settings x Verify the installed electric heater is valid for the modular blower Check nameplate or Specification Sheet applicable to your model for allowable heater kit s x Verify shared data set is correct for the specific model Re ...

Страница 15: ...does not contain any shared data x Populate shared data set using memory card x Turn power OFF prior to repair x Use memory card for the specific model x Insert memory card BEFORE turning power ON Memory card may be removed after data is loaded x Error code will be cleared once data is loaded x Turn power off before removing memory card x Modular blower fails to operate x Integrated control module...

Страница 16: ...irculator blower motor in modular blower x Incorrect shared data set in integrated control module x Verify circulator blower motor horse power is the same specified for the specific modular blower model Replace is necessary x Verify shared data set is correct for the specific model Re populate data using correct memory card if required x Turn power OFF prior to repair x Replace motor with correct ...

Страница 17: ...e to blower is within the range specified on the modular blower rating plate x See Installation Instructions for installation requirements x Turn power OFF prior to repair x Modular blower fails to operate x Integrated control module LED display provides indicated error code x ComfortNet thermostat Call for Service icon illuminated x ComfortNet thermostat scrolls Check Air Handler message b7 x Cir...

Страница 18: ...b6 OVER UNDER VOLTAGE TRIP OR OVER TEMPERATURE TRIP b7 INCOMPLETE PARAMETER SENT TO MOTOR b9 LOW INDOOR AIRFLOW C1 LOW STAGE COOL LEGACY MODE ONLY C2 HIGH STAGE COOL LEGACY MODE ONLY P1 LOW STAGE HEAT PUMP HEAT LEGACY MODE ONLY P2 HIGH STAGE HEAT PUMP HEAT LEGACY MODE ONLY h1 EMERGENCY HEAT LOW COMMUNICATING MODE ONLY h2 EMERGENCY HEAT HIGH COMMUNICATING MODE ONLY FC FAN COOL COMMUNICATING MODE ON...

Страница 19: ...OLTAGE 24V FIELD SPLICE INTE RNAL TO FIELD GRND OVERCUR RENT BK BLACK OR ORANGE BL BLUE PK PINK GY GRAY RD RED WH WHITE PU PURPLE YL YELLOW BR BROWN COLOR CODES GN GREEN NOTES 1 PLACE RED WIRES ON TRANSFORMER TERMIN AL 2 FOR 208 VAC OPERATION 2 MANUFACTURER S SPECIFIED RE PLACE MENT PA RTS MU ST BE U SED WHEN SERVICING 3 IF ANY OF THE ORIGINAL WIRES AS SU PPLIED WITH THIS UNIT MU ST BE R EPLACED I...

Страница 20: ...d drain pan tablets contain corrosive chemicals that can be harmful to alumi num tube and fin evaporator coils Even a one time application of these corrosive chemicals can cause premature aluminum evaporator coil failure Any cleaners that contain corrosive chemi cals including but not limited to chlorine and hydroxides should not be used An alternate cleaning method is to use one of the products l...

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Страница 24: ...QR code on the right for the product brand you purchased to be direced to the feedback page DAIKIN is a registered trademark of Maytag or its related companies and is used under license All rights reserved Product Registration Thank you for your recent purchase Though not required to get the protection of the standard waranty registering your product is a relatively short process and entitles you ...

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