ClimateMaster Ultra Classic VT 036 Скачать руководство пользователя страница 17 | Manualshive

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ClimateMaster Ultra Classic VT 036 Скачать руководство пользователя страница 17

Ultra Classic (VT) Series

Page 17

Accessory Connections

A terminal paralleling the compressor contactor coil
have been provided on the CXM/DXM control of the
UltraClassic line. "A" has been provided to control
accessory devices, such as water valves, electronic air
cleaners, humidifiers, etc.

Note: This terminal should

be used only with 24 Volt signals and not line voltage

signals.

This signal operates with the compressor contactor.

See Figure 21 or the wiring schematic for details.

Figure 21: Accessory Wiring

Figure 22: Well Water AVM Valve Wiring

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Water Solenoid Valves

When using solenoid valves on ground water installations.
Figure 21 illustrates a typical well water control valve
wiring which will limit wasted water during a lockout
condition. A slow closing valve may be required to
prevent water hammer. When using an AVM -Taco
Slow Closing valves on UltraClassic Series equipment
Figure 20 wiring should be utilized. The valve takes
approximately 60 seconds to open (very little water will
flow before 45 seconds) and it activates the compressor
only after the valve is completely opened (by closing
its end switch). Only relay or triac based electronic
thermostats should be used with the AVM valve. When
wired as shown, the valve will operate properly with the
following notations:
1 - The valve will remain open during a unit lockout.
2 - The valve will draw approximately 25-35 VA through
the “Y” signal of the thermostat.

Note: This can

overheat the anticipators of electromechanical

thermostats.

Therefore only relay or triac based

thermostats should be used.

C

Ultra Classic

C

Thermostat

Y

1

2

3

Y

AVM

Taco Valve

Heater Switch

Thermostat Selection and Wiring

ATA32H01 - Auto Changeover electronic 3 Heat / 2

Cool thermostat

This electronic thermostat, Fig 23, is suited to all Ultra-
Classic applications.

The UltraClassic also employs an ECM board that features:

• Thermostat terminal connections

• Thermostat signal diagnostic LED's

• Airflow selection

• Airflow LED (100 cfm per flash)

• Dehumidification Mode Jumper

Figure 23: ATA32H01 wiring

ELECTRICAL - LOW VOLTAGE

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Содержание Ultra Classic VT 036

Страница 1: ...Information 22 Troubleshooting Analysis 23 Major Replacement Components 24 Unit Start Up Procedure 26 Operating Limits 26 Pressure Drop Table 28 Operating Pressures 28 Warranty 31 Preventive Maintena...

Страница 2: ...ts have been received Inspect the carton or crating of each unit and inspect each unit for damage Assure the carrier makes proper notation of any shortages or damage on all copies of the freight bill...

Страница 3: ...unit start up read all manuals and become familiar with the unit and its operation Thoroughly check the system before operation Prepare units for installation as follows 1 Compare the electrical data...

Страница 4: ...Page Ultra Classic VT Series Physical Dimensions INSTALLATION...

Страница 5: ...e connector is recommended for both discharge and return air duct connections on metal duct systems Uninsulated duct should be insulated with a minimum of one inch duct insulation Application of the u...

Страница 6: ...essure temperature taps for serviceability run When some sagging in the condensate line may be anticipated as in a long line of plastic pipe or when double trapping may occur Also vent when large unit...

Страница 7: ...re operation Flush the loop with a high volume of water at a high velocity 2 fps in all piping both directions The steps below must be followed for proper flushing Fill loop with water from a garden h...

Страница 8: ...s however your local territory manager should be consulted for the antifreeze best suited to your area Freeze protection should be maintained to 15 F below the lowest expected entering loop temperatur...

Страница 9: ...cal building and zoning department to assure compliance in your area OPEN LOOP WELL WATER SYSTEMS Water Control Valve Note the placement of the water control valve Always maintain water pressure in th...

Страница 10: ...e examined for feasibility before installation City water should not be used as a source in areas where water temperatures fall below 45 F ClimateMaster should be consulted when sizing earth loops for...

Страница 11: ...hown in Figure 15 is the most efficient system providing the maximum storage and temperate source water to the desuperheater Using a concentric hot water tank connection fitting eliminates the need to...

Страница 12: ...eat available from the refrigeration system and con serve the most energy On tanks with both upper and lower elements and thermostats the lower element should be turned down to 100 F or lowest setting...

Страница 13: ...own on the unit serial plate Line and low voltage wiring must be done in accordance with local codes or the National Electric Code whichever is applicable Unit Power Connection Line voltage connection...

Страница 14: ...used 2 stage heat 2 stage cool or 3 stage heat 2 stage cool Note Power must be off to the unit for at least three seconds before the ECM motor will recognize a speed change The motor will recognize a...

Страница 15: ...17B0019N01 DIP Switch Version II Version II 17B0019N01 Version II 17B0019N01 DIP Switch DIP Switch ON OFF DIP Switch Version II 17B0019N01 DIP Switch 17B0019N01 SW9 Table 6 ECM Board Tap Settings Y G...

Страница 16: ...wg hp Setting Stg 2 Stg 1 Fan Stg 2 Stg 1 Fan Setting Mode 4 1290 710 650 1010 550 650 4 1290 036 0 5 1 2 3 1200 660 600 940 520 600 3 1200 2 1110 610 560 870 480 560 2 1110 1 1020 560 510 1 1020 4 1...

Страница 17: ...valve takes approximately 60 seconds to open very little water will flow before 45 seconds and it activates the compressor only after the valve is completely opened by closing its end switch Only rel...

Страница 18: ...Page 18 Ultra Classic VT Series Electrical Schematic...

Страница 19: ...ault For Diagnostic ease at the thermostat the alarm relay will also cycle during test mode The Alarm relay will cycle on and off similar to the status LED to indicate a code representing the last fau...

Страница 20: ...Switch input is bypassed for the initial 60 seconds of a compressor run cycle Low Pressure Lockout Code 3 thermistor temperature must be below the selected freeze protection limit setting for 30 cont...

Страница 21: ...ng Stage 1 mode Y becomes active The first time after power up that there is a call for compressor the compressor will follow a 5 to 80 second random start delay There will also be a 5 min compressor...

Страница 22: ...d at the board connector The thermistor resistance should be measured with the connector removed so that only the impedance of the thermistor is measured If desired this reading can be compared to the...

Страница 23: ...ower before servicing can cause severe personal injury or death TROUBLE ANALYSIS If operational difficulties are encountered be sure to perform the preliminary checks before referring to the Troublesh...

Страница 24: ...cooling Check fan motor operation and airflow restrictions Too high of external static Check static vs blower table X Air Temperature out of range Too much cold vent air Bring entering air temp within...

Страница 25: ...ng in water heat exchanger Perform Scaling check and clean if necessary X X Inlet Water too Hot or Cold Check load loop sizing loop backfill ground moisture High Head Pressure X Reduced or no Air flow...

Страница 26: ...ing Conditions GT X Units Units start and operate in an ambient of 45 F with entering air at 45 F entering water at 32 F and both air and water at the stated flow rates of ISO ASHRAE ARI 13256 1 for i...

Страница 27: ...it pressure drop across the heat exchanger versus the data in Table 12 Heat of rejection can be calculated and compared to specification catalog f Check air temperature drop across the coil when compr...

Страница 28: ...Page 28 Ultra Classic VT Series Table 14 Unit operating pressures and temperatures Table 12 Water Temperature Change Through Heat Exchanger Table 13 Water Pressure Drop Table...

Страница 29: ...Ultra Classic VT Series Page 29 Notes...

Страница 30: ...Page 30 Ultra Classic VT Series...

Страница 31: ...or use of CM s products or 13 Electricity or fuel costs or any increases or unrealized savings in same for any reason whatsoever CM is not responsible for 1 The costs of any fluids refrigerant or sys...

Страница 32: ...t can erode the heat exchanger wall and ultimately produce leaks Filters Filters must be clean to obtain maximum performance They should be inspected every month under normal operating conditions and...

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