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MicroTech 2000 units can provide up to 4-outputs, that
can be configured for any of the following output control
signals:

1) Scheduled Output

When using a Network Master Panel (NMP) these
outputs can be assigned to one of 32 available
schedules. The output will energize when the assigned
schedule is occupied and de-energize when in
unoccupied. These outputs could be used to control
lights, etc.

2) Auxiliary Heat (Skin Heat)

When using a Loop Water Controller (LWC) the
MicroTech 2000 receives loop water temperature
information from the LWC and will use the Auxiliary
Heat output for heating when loop water temperature
is inappropriate for heat pump heating. These outputs
provide a signal that can be used to control a remote
electric heater. The output will energize on a call for
electric heat and de-energize when not required.

3) Fresh Air Damper

These outputs provide a signal that can be used to
control a remote fresh air damper. The output will
energize when the unit fan is energized and de-
energize when the unit fan is de-energized.

4) Motorized Water Valve

These outputs provide control for a motorized water
valve that can be used to stop or divert flow away from
the WSHP when compressor operation is not needed.
The output will be energized when compressor
operation is required.

If more than one of the above control signals is required
on a single WSHP, the MicroTech 2000 Auxiliary Module
Kit (107239001) must be used and these additional output
control signals will be connected to the Auxiliary board.
1-circuit units can provide up to 4-outputs.

If the Auxiliary board is added in the field to provide
additional outputs it will need to be mounted within the
WSHP control box so that J1 on the Auxiliary board can
be connected to J6 on the MicroTech 2000 board without
exceeding a maximum wire length of 10".

Also, each output is by default configured to “none” and
must be field set to one of the four signal types listed
above using the Monitor software, cable, and a PC
communicating to the unit through an MCG panel.

Field Installed Options on MicroTech 2000 Units

1st Control Signal Output

2nd Control Signal Output

3rd Control Signal Output

4th Control Signal Output

1

2

3

4

5

6

7

E

L U P C

4

3

2

1

(by others)

24VAC

4

3

2

1

(by others)

24VAC

4

3

2

1

(by others)

24VAC

Terminal Boards

(Located externally on the WSHP chassis)

24VAC

Pilot Duty Relay

(by others)

24VAC

Pilot Duty Relay

(by others)

24VAC

Pilot Duty Relay

(by others)

24VAC

Pilot Duty Relay

(by others)

Terminals Located in MicroTech 2000

Auxiliary Board

J7

Terminals Located in MicroTech 2000

Auxiliary Board

J10

Terminals Located in MicroTech 2000

Auxiliary Board

J6

Use contacts as needed for option

Use contacts as needed for option

Use contacts as needed for option

IMPORTANT:
To use onboard 24VAC,
change the jumper PF1 on the
MicroTech 2000 controller from
factory default pins 1 and 2 to
pins 2 and 3.

Содержание FDD Series

Страница 1: ...iagrams 8 14 Unit operation 15 LED Status and Fault Output Status 16 Thermostat Connections Mark IV AC units 17 Options for Mark IV AC units 19 22 Troubleshooting 23 Maintenance 24 2006 McQuay Interna...

Страница 2: ...e of rough handling the cartons should be opened at once to check for concealed damage If any damage is found notify the carrier within 48 hours to establish your claim and request their inspection an...

Страница 3: ...ance Opt Controls Main Access Panel Condensate Water Supply Water Return Heat Pump With Right Hand Return Air Arrangement Return Air Opt Controls Elec Entrance Main Access Panel Condensate Water Suppl...

Страница 4: ...duct material the return air duct should be internally lined with acoustic insulation for sound attenuation Glass fiber duct board material is more absorb ing and may permit omission of the flexible c...

Страница 5: ...system may also be made to work ac ceptably but proper water flow balancing is more diffi cult to achieve and maintain 2 The piping can be steel copper or PVC 3 Supply and return runouts are usually...

Страница 6: ...for initial flush and blow down making sure city water fill valves are set to make up water at the same rate Check the pressure gauge at pump suction and manually adjust the makeup to hold the same po...

Страница 7: ...chine should not Operating Limits Environment This equipment is designed for indoor installation only Sheltered locations such as attics garages etc generally will not provide sufficient protection ag...

Страница 8: ...upplied relays attached to the 24 volt terminals R W Y or G may introduce electrical noise Never install relays in series with the inputs Notes 1 Mark IV AC controller board contains a static sensitiv...

Страница 9: ...relays in series with the inputs Figure 10 Unit sizes 019 through 048 208 230 265 volts single phase 060686606 Rev C Notes 1 Mark IV AC controller board contains a static sensitive micropro cessor Pr...

Страница 10: ...switches are normally closed 5 Field supplied relays attached to the 24 volt terminals R W Y or G may introduce electrical noise Never install relays in series with the inputs Figure 12 Unit sizes 02...

Страница 11: ...d relays attached to the 24 volt terminals R W Y or G may introduce electrical noise Never install relays in series with the inputs Notes 1 Mark IV AC controller board contains a static sensitive micr...

Страница 12: ...24 volt terminals R W Y or G may introduce electrical noise Never install relays in series with the inputs Notes 1 Mark IV AC controller board contains a static sensitive micropro cessor Proper ground...

Страница 13: ...o the 24 volt terminals R W Y or G may introduce electrical noise Never install relays in series with the inputs Notes 1 Mark IV AC controller board contains a static sensitive micropro cessor Proper...

Страница 14: ...for 208V operation If 230V power supply is used transformer must be wired by disconnecting the power lead from the red transformer primary wire Place an insulation cap on the red transformer primary w...

Страница 15: ...itch or low pressure switch on unit sizes 048 and 060 The unit does not have to be reset on a condensate overflow detection The Mark IV AC control board has a fault output signal to an LED on a wall t...

Страница 16: ...rces may be used to operate Mark IV AC board inputs Note The fault output is energized when no faults exist The fault output is de energized during faults and when unit power is off Using Drive Using...

Страница 17: ...with other wires Wire 1 should run between the S1 terminal on the thermostat and the S1 terminal on the remote sensor Wire 2 should run between the S2 terminal on the thermostat and the S2 terminal o...

Страница 18: ...rk IV AC Board Low Voltage Terminal Strip WSHP Mark IV AC Board Low Voltage Terminal Strip Multiple Unit Control Panel TB3 TB2 TB1 TB4 R C W1 Y1 W2 Y2 G Thermostat Terminals This version of the board...

Страница 19: ...nal is not being used as a pump restart signal to other equipment If the P terminalmustbeusedasapumprestartsignaltootherequipment then wire the auxiliary relay s yellow wire to Y1 white wire to W1 and...

Страница 20: ...r tempera ture sensor on the water supply line and then connect the duct heater control contacts to the duct heater control circuit 9 66 245 mm 007 042 14 50 368 mm 048 060 6 5 165 mm 007 042 4 12 105...

Страница 21: ...C P terminal will change state causing a contact closure between terminal 58 and 64 signaling the loop water control LWC panel to restart the loop pump if Off The pump restart relay kit is typically m...

Страница 22: ...signals is required on a single WSHP the MicroTech 2000 Auxiliary Module Kit 107239001 must be used and these additional output control signals will be connected to the Auxiliary board 1 circuit unit...

Страница 23: ...eating Check compressor wiring for defective wiring or loose connection Check thermostat for improper location Check for defective compressor internal windings with ohm meter Check for bad compressor...

Страница 24: ...differences both heating and cooling is recommended A comparison of logged data with start up and other annual data is useful as an indica tor of general equipment condition 5 Periodic lockouts alway...

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