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IM 950-1 / Page 2 of 38

Now that you have made an investment in modern, efficient McQuay

equipment, its care and operation should

be a high priority. For training information on all McQuay HVAC products, please visit us at www.mcquay.com and

click on Training or phone 540-248-0711 and ask for the Training Department.

Table of Contents

Safety Information ....................................................... 3

Inspection

..................................................................... 3

Nomenclature

...............................................................

Dimensional Data ....................................................... 5

Wall Opening Requirements

.................................. 6

Installation Considerations

....................................

Preparing the Unit for Installation ........................... 8
Installation of: ........................................................... 8

Louver Frame ........................................................

Cabinet/Wall Sleeve Extension

.............................

Optional Condensate Drain Kit

............................. 9

Room Cabinet/Wall Sleeve

.............................

10-11

Heating/Cooling Chassis

.....................................

Heat Fan Lock Out Control

.................................

Equipment Start-up

..............................................

Start-up Report–Audit

.........................................

Controls ..............................................................15-26

Standard Digital Touchpad Control

................

15-17

Modes of Operation

........................................

17-21

Premium (Programmable) Digital

Touchpad Control Operating Instructions

......

22-24

Remote Wall Mounted Thermostats

...............

25-27

Wiring Diagrams .................................................27-31

Remote Thermostat With Secondary Units

.........

Premium (Programmable)

Digital Control Board

..........................................

Standard (Non-programmable)

Digital Control Board

..........................................

Digital Control Board With Standby Power

........

Digital Control Board Without Standby Power

...

Scheduled Maintenance

........................................

32-33

Faults and Protection Codes for

PTAC/PTHP Control Board

.......................................

Solid State Digital Controls-LUI Interface

Display Codes

............................................................

Troubleshooting Chart

..........................................

35-36

Approximate Shipping Weights

.................................

Содержание PDAE

Страница 1: ...ho are familiar with local codes and regula tions and are experienced with this type of equipment Caution Sharp edges and coil surfaces are potential injury hazards Installation Maintenance Data IM 95...

Страница 2: ...9 Room Cabinet Wall Sleeve 10 11 Heating Cooling Chassis 12 Heat Fan Lock Out Control 12 Equipment Start up 13 Start up Report Audit 14 Controls 15 26 Standard Digital Touchpad Control 15 17 Modes of...

Страница 3: ...ight bill or carrier s receipt and signed by the carrier s agent Failure to adequately describe such external evidence of loss or damage may result in the carrier s refusal to honor a damage claim The...

Страница 4: ...Heat Type S Steam Top Mount Normally Closed H Hot Water Top Mount Normally Open Y None SKU A Stock B Build to Order P DAE 1 009 E M R H A B D M A A E Controls Control Board Type B Basic Control P Pre...

Страница 5: ...c Heat 163 8 416mm 447 8 1140mm 411 2 1054mm 111 16 43mm 3 76mm or 4 102mm 101 2 267mm Minimum Finished Wall Line 61 4 159mm 41 4 108mm to 133 4 349mm 20 508mm 1 2 13mm A A Louver thickness 3 8 10mm s...

Страница 6: ...ers Overhangs that do not allow discharge air to rise Installation of bug screen of any kind 5 Heating Cooling Chassis Shipped in palletized carton Figure 1 Panel Wall Thin Construction Figure 3 Frame...

Страница 7: ...eptacle is generally mounted beneath the conditioner on or recessed in the wall so it is concealed by the conditioner overhang see Figure 5 The chassis cord has a 18 inch usable length from where it e...

Страница 8: ...installed to the wall sleeve extension 5 Continue wall sleeve installation according to instructions on page 10 11 Preparing Unit for Installation Note first install the louver frame following steps 1...

Страница 9: ...two 2 5 32 pilot holes for the mounting screws These holes can be located using the drain kit as a pattern 4 Assemble the drain kit as shown in Figure 10 and securely fasten it to the wall sleeve with...

Страница 10: ...base The rear face of the cabinet should be recessed from the outside edge of the louver frame by the depth of the louver to be installed see Figure 12 4 Level the subbase with leveling bolts provided...

Страница 11: ...bubble to the outside secure it and the louver frame to the wall with screws driven through the sides and top of the room cabinet wall sleeve outward through the louver frame Never secure the frame t...

Страница 12: ...s Report any shipping damage to the carrier immediately 2 Check the interior of the installed room cabinet wall sleeve Clean out any dirt or debris that may have accumulated If Replacement chassis is...

Страница 13: ...equipment leaves the McQuay factory it may become damaged or maladjusted during transportation or on the job Sometimes wires are disconnected accidentally or fan motors move on their bases due to roug...

Страница 14: ...er Air Free of Obstruction Cycle Continuous Fan if so equipped Other Conditions Found ___________________________________________________________ ______________________________________________________...

Страница 15: ...tP Touchpad Control t Time Ts Temperature Setpoint Rf Room Freeze Condition CF Coil Freeze Protection F Fahrenheit C Celsius LC Control Lockout Mode Remote Thermostat Control The Remote Thermostat ca...

Страница 16: ...trol shall start with the last settings used prior to power down These settings are saved in a non volatile memory Factory set mode is OFF On Off Triggering Control can be turned On Off via LUI Remote...

Страница 17: ...d Controls Standard Digital Touchpad Control Modes of Operation Cool Mode In Cool Mode the compressor will start if the temperature at the space temperature sensor is 1 F or higher than the set point...

Страница 18: ...perature differential between the room temperature and the set point is less than 2 F This will also occur after a Cold Start or a Mode change from Cool to Cool Dry During this time the fan will opera...

Страница 19: ...tion will be deactivated by Power on reset or by pressing any button on the Touchpad except Sleep 4 Fan Mode In the Fan Mode the fan will operate continuously at the user s speed setting The compresso...

Страница 20: ...fan can be started only if the following conditions are met 1 after the 3 minute delay on break AND 2 the indoor coil reaches 49 F or above and remains there for at least 1 minute OR 3 another Mode is...

Страница 21: ...76mm or 4 102mm height and can be furnished with factory mounted fused disconnect option 3 On all 265V models an electrical subbase is required The chassis is supplied with a short cord which is just...

Страница 22: ...ey are of 560 Ohm and 3W value These resistors are meant to load thermostat solid state outputs in order for the output voltage to be either 0 or 24VAC i e no floating voltage These resistors are conn...

Страница 23: ...by pressing Mode button 2 1 Once in the configuration mode the default temperature scale will be displayed as shown below Toggle the temperature scale to degree Celsius by pressing either or button 2...

Страница 24: ...e thermostat for each period of the day repeat steps 3 3 through 3 7 Further the thermostat can be programmed for each individual day of the week or use the SimplesetTM feature as described below 3 9...

Страница 25: ...ackup SC2001 Temperature Control Ranges 45o F to 90o F Accuracy 1o F System Configurations 1 stage heat 1 stage cool or single stage electric heat pump Terminations R C W Y O B G Specifications Electr...

Страница 26: ...s There are two basic types of thermostats manufactured today those with relay contacts and those with solid state triacs If you open the thermostat and don t see relays then you can assume it to be s...

Страница 27: ...ement are as follows 1 When wiring the low voltage plug and receptacle disconnect provide enough wire to move harness out of the way for chassis removal Remote Wall Mounted Thermostats 2 If subbase is...

Страница 28: ...e room temperature 3 Jumper Placement to Select Controller Type A Place jumper across LUI to select unit mounted touchpad Local User Interface B Place jumper across secondary SEC to select secondary c...

Страница 29: ...door Fan Motor OCS Outdoor Coil Sensor OAS Outdoor Air Sensor ICS Indoor Coil Sensor IAS Indoor Air Sensor LUI Local User Interface REV Reversing Valve EHC Eletric Heat Contactor 1 Jumper Placement to...

Страница 30: ...the premium control board For the latest drawing version refer to the wiring diagram located on the inside of the controls access panel of the unit Wire Color Voltage WH 120V RD 208V OR 240V BN 277V...

Страница 31: ...emium control board For the latest drawing version refer to the wiring diagram located on the inside of the controls access panel of the unit Wire Color Voltage WH 120V RD 208V OR 240V BN 277V Drawing...

Страница 32: ...With proper care the unit should provide uninterrupted service for many years Scheduled maintenance of this equipment as described below is the key to the equipment s longevity A Air filters must be c...

Страница 33: ...t of the system A further advantage is that a failed part can be quickly and easily replaced thus minimizing the inoperative time of the equipment This is so however only if a replacement part is quic...

Страница 34: ...t LA Low Ambient Lockout Outdoor air temperature is below 35 F Fault and Protection Codes for Applied PTAC PTHP Control Board Fault code Description Cause for the fault LC Control Lockout Displays for...

Страница 35: ...Obstructed discharge grilles 5 Evaporator blower motor not running 6 Evaporator blower motor not up to speed 7 Evaporator motor slipping on motor shaft d Heat load in room exceeds capacity of equipme...

Страница 36: ...Noise will disappear after equipment runs awhile e Make necessary adjustments to components f Check for proper adjustment Apply silicone oil or grease to gap between solenoid and armature g Tighten h...

Страница 37: ...ged 129 5 137 0 137 9 145 6 145 6 PDHE Chassis 116 0 123 5 124 4 132 1 PDAE Chassis 114 5 122 0 122 9 130 6 130 6 Louvers Flush stamped 6 lbs 3kg Architectural 8 lbs 3kg Subbase 3 76mm High Electrical...

Страница 38: ...m and click on training or call 540 248 9646 and ask for the Training Department Warranty All McQuay equipment is sold pursuant to its standard terms and conditions of sale including Limited Product W...

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