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Manual

2100-418F

Page

47 of 49

Heat

Gen.

Power Failure

Blown Fuse or Tripped Breaker

Faulty Wiring

Loose Terminals

Low Voltage

Defective Contacts in Contactor

Compressor Overload

Potential Relay

Run Capacitor

Start Capacitor

Faulty Wiring

Loose Terminals

Control Transformer

Low Voltage

Thermostat

Contactor Coil

Pressure Controls (High or Low)

Indoor Blower Relay

Discharge Line Hitting Inside of Shell

Bearings Defective

Seized

Valve Defective

Motor Wingings Defective

Refrigerant Charge Low

Refrigerant Overcharge

High Head Pressure

Low Head Pressure

High Suction Pressure

Low Suction Pressure

Non-Condensables

Unequalized Pressures

Solenoid Valve Stuck Closed (Htg)

Solenoid Valve Stuck Closed (Clg)

Solenoid Valve Stuck Open (Htg or Clg)

Leaking

Defective Valve or Coil

Plugged or Restricted Metering Device (Htg)

Scaled or Plugged Coil (Htg)

Scaled or Plugged Coil (CLg)

Water Volume Low (Htg)

Water Volume Low (Clg)

Low Water Temperature (Htg)

Plugged or Restricted Metering Device (Clg)

Fins Dirty or Plugged

Motor Winding Defective

Air Volume Low

Air Filters Dirty

Undersized or Restricted Ductwork

Auxillary Heat Upstream of Coil

Compressor

ill Not Run

No Pow

er at Contact

Compressor

ill Not Run

Pow

er at Contactor

Compressor

"Hums

But W

ill Not

Start

Compressor

Cyc

les on Ov

erload

Thermost

at Check

Light

Lite-Lock

out Relay

Compressor

Off on High

Pressure Control

Compressor

Off on Low

Pressure Control

Compressor Noisy

Head Pressure T

oo High

Head Pressure T

oo Low

Suction P

ressure Too High

Suction P

ressure Too Low

I.D. Blow

er W

ill Not

Start

I.D. Coil

Frosting or Ic

ing

High Compress

or Amps

cessiv

e W

ater Us

age

Compressor

Runs Continuously

– No Cooling

Liquid Refrigerant Fl

ooding Back

To Compres

sor

Compressor

Runs Continuously

– No Heating

Rev

ersing Valv

e Does

Not Shift

Liquid Refrigerant Fl

ooding Back

To Compres

sor

Aux

. Heat on I.

D. Blow

er Off

cessiv

e Operati

on Costs

Ice in W

ater

Heating Cycle

Cooling

Cycle

Heating or Cooling Cycles

oor

ower

otor

and Coi

INDOOR SECT

ION

POW

ER SUP

PLY

ater

olenoid

Valv

ater Coi

R COIL SE

Line V

oltage

Control Ci

rcuit

Compressor

Refri

gerant Sy

stem

QUICK REFERENCE TROUBLESHOOTING CHART FOR WATER TO AIR HEAT PUMP

DENOTES COMMON CAUSE

DENOTES OCCASIONAL CAUSE

Содержание QW242D

Страница 1: ...S Models QW242D QW302D QW361D QW421D QW481D QW601D Copyright 2003 Manual No 2100 418F Supersedes 2100 418E File Vol II Tab 14 Date 06 28 07 Bard Manufacturing Company Inc Bryan Ohio 43506 Since 1914 M...

Страница 2: ...tting Other Information and Publications For more information contact these publishers 4 QW General Information QW Model Nomenclature 5 Shipping Damage 7 Unit Removal From Skid 7 Handling Unit After R...

Страница 3: ...Figure 17 Remote Thermostat Wiring G Option 23 Figure 18 Heat Pump Dehumidification Mode Circuit Diagram 28 Figure 19 Heap Pump Cooling Mode Circuit Diagram 28 Figure 20 Fluid Connections w Ventilatio...

Страница 4: ...rocedures for Ground Source IGSHPA Heat Pump Systems Soil and Rock Classification for the Design IGSHPA of Ground Coupled Heat Pump Systems Ground Source Installation Standards IGSHPA Closed Loop Geot...

Страница 5: ...LIMATE CONTROL OPTIONS 1 X None E Electronic Prog Man Auto Humidistat F Electronic Non Prog Man or Auto C O Humidistat 6 hr timer G Electronic Non Prog Man or Auto C O Humidistat COLOR OPTIONS V Plati...

Страница 6: ...Manual 2100 418F Page 6 of 49 FIGURE 1 UNIT DIMENSIONS...

Страница 7: ...oorway If the door height allows the unit can be slid sideways through the door If the unit can not be slid through the door then the unit will have to be put on a cart and tipped down to roll through...

Страница 8: ...any tags and or labels attached to the equipment While these instructions are intended as a general recommended guide they do not supersede any national and or local codes in any way Authorities havin...

Страница 9: ...Manual 2100 418F Page 9 of 49 FIGURE 4 INSTALLATION OF UNIT THROUGH WALL WITH WALL SLEEVE...

Страница 10: ...Manual 2100 418F Page 10 of 49 FIGURE 6 DUCTEDAPPLICATION FIGURE 5 INSTALLATION WITH FREE BLOW PLENUM CEILING FLOOR FLOOR...

Страница 11: ...the ceiling This extends 20 above the unit for a total height above the floor of 10 7 8 The unit is equipped with a variable speed indoor blower motor which increases in speed with an increase in duc...

Страница 12: ...requires a water trap for proper drainage See Figure 8A The drain can be routed through the floor or through the wall If the drain is to be routed through an unconditioned space it must be protected...

Страница 13: ...teps necessary to remove each of the vent options are listed following It is recommended that the mist eliminator be inspected annually and serviced as required The mist eliminator can be inspected fr...

Страница 14: ...ess to the mist eliminator 1 The two mounting screws in the front of the CRV must be removed 2 The power connectors for the CRV located on the right side of the unit must be disconnected Squeeze the t...

Страница 15: ...OVERY VENTILATOR 3 Underneath the heat recovery cassette there is a power connector for the lower blower assembly To disconnect this plug the tabs on both sides of the plug must be squeezed to release...

Страница 16: ...id piping connections are to be within the confines of this bracket See Figure 1 for cabinet openings and location of fluid coil connection points 2 Position the unit in front of the wall mounting bra...

Страница 17: ...8F Page 17 of 49 FIGURE 12 UNIT MOUNTING WITHOUT VENTILATION WALL SLEEVE REFER TO MOUNTING INSTRUCTIONS ON PAGE 16 SIDE TRIM 2 PIECES SIDE TRIM 2 PIECES WALL MOUNTING BRACKET BOTTOM TRIM EXTENSION BOT...

Страница 18: ...Manual 2100 418F Page 18 of 49 FIGURE 13 COMPONENTLOCATION SIDE FIELD WIRE ENTRANCE REMOTE THERMOSTAT TERMINAL BLOCK INDOOR BLOWER CONTROL BOX CIRCUIT BREAKER PANEL ELECTRICAL CONNECTION PANEL...

Страница 19: ...0 208V 1 PHASE AND 3 PHASE EQUIPMENT DUAL PRIMARY VOLTAGE TRANSFORMERS All equipment leaves the factory wired on 240V tap For 208V operation reconnect from 240V to 208V tap The acceptable operating vo...

Страница 20: ...P4 is 24 VAC hot C terminal or pin 11of P4 is 24 VAC grounded L terminal or pin 12 of P4 is compressor lockout output This terminal is activated on a high or low pressure trip by the electronic heat p...

Страница 21: ...8403 058 R L Y W2 O B 6 G FACTORY INSTALLED JUMPER HUMIDISTAT W1 10 Y1 R Y1 R L Y W2 B Y C E G 6 BL 3 E R BL BR LVTB R A O1 T P4 7 2 4 1 O B 12 8 9 0 11 6 5 C 4102 034 C Rc 1 H200 D YO TH5220D1151 84...

Страница 22: ...Manual 2100 418F Page 22 of 49 FIGURE 16 REMOTE THERMOSTAT WIRING DIAGRAM E THERMOSTAT OPTION R 3 11 Y1 9 2 12 R Y G C 8403 060 A 0 8 4102 050 BR 7 R W2 T 4 6 BK 10 1 O B Y 5 BL L P4 D YO W1 E...

Страница 23: ...100 418F Page 23 of 49 FIGURE 17 REMOTE THERMOSTAT WIRING DIAGRAM G THERMOSTAT OPTION BL O B 2 TB1 Y 6 Y 5 W1 E 4 7 11 8403 060 C 4102 054 3 P4 G 1 R D YO 0 BR 12 10 9 BK W2 8 TERM C L 01 Y Y1 R Y C T...

Страница 24: ...y HIGH PRESSURE SWITCH AND LOCKOUT SEQUENCE If the high pressure switch opens the compressor contactor will de energize immediately The lockout timer will go into a soft lockout and stay in soft locko...

Страница 25: ...3 1 s e t u n i m 0 3 s d n o c e s 0 8 1 B O D M O D s d n o c e s 8 3 1 s e t u n i m 0 4 s d n o c e s 0 4 2 B O D M O D s d n o c e s 4 4 1 s e t u n i m 0 5 s d n o c e s 0 0 3 B O D M O D s d n...

Страница 26: ...calls for first stage heat when the unit is in dehumidification mode the unit will continue to run in dehumidification mode until a second stage heat call is received If the unit is running in heat pu...

Страница 27: ...ilable continuously by switching a jumper at the relay logic board When the humidity is above the setpoint of the humidistat the compressor circuit and the three way valve are energized and the evapor...

Страница 28: ...LVE ORIFICE DRAIN ASS Y HEAT PUMP COOLING MODE CIRCUIT DIAGRAM WATER WATER CLOSED CIRCUIT DISTRIBUTOR FIGURE 19 MIS 1788A WATER WATER HEAT PUMP DEHUMIDIFICATION MODE CIRCUIT DIAGRAM ORIFICE DRAIN ASS...

Страница 29: ...c O X X X X X X X X X g n i t a e H e g a t S t s 1 m u h e D w X X X X X X X X g n i t a e H e g a t S d n 2 d e i p u c c o n U X X X X X X X X X g n i t a e H e g a t S d n 2 d e i p u c c O X X X...

Страница 30: ...WALL SLEEVE MIS 1602 1 18 01 REF 23 1 2 63 1 2 8 1 2 33 SIDE TRIM PIECES SHIPPED WITH UNIT IF THE WALL THICKNESS IS LESS THAN 14 BUT GREATER THAN 8 A SIDE TRIM EXTENSION KIT QSTX42 IS REQUIRED REFER...

Страница 31: ...OP VIEW WALL LOCATION 4 FLUID ACCESS FROM FLOOR FLOOR WALL BRACKET LEFT BRACKET REMOVED FOR CLARITY FLUID ACCESS FROM TOP OPENING IN REAR OF UNIT 3 x 8 BACK OF UNIT MIS 1601 11 10 00 8 1 2 63 1 2 23 1...

Страница 32: ...1 2 3 D 1 2 4 W Q 2 6 5 7 e d i S w o L e d i S h g i H 1 6 5 2 1 3 6 5 3 1 5 6 4 4 1 5 6 4 5 1 7 6 6 6 1 8 6 8 7 1 0 7 1 9 1 1 7 5 0 2 2 7 9 1 2 3 7 5 3 2 4 7 2 5 2 5 7 9 6 2 5 7 8 8 2 6 7 6 0 3 7 6...

Страница 33: ...7 1 1 4 5 8 1 5 4 2 9 1 0 5 8 9 1 5 5 5 0 2 0 6 2 1 2 5 6 9 1 2 1 7 6 2 2 7 7 4 3 2 4 8 1 4 2 0 9 9 4 2 D 1 8 4 W Q 8 6 e d i S w o L e d i S h g i H 1 3 6 7 1 5 3 1 8 1 9 3 7 8 1 3 4 4 9 1 7 4 0 0 2...

Страница 34: ...selected so that the finish color is matched to the QW model that they will be used with Side Trim Extension Kits Required when wall thickness is less than 14 inches and works for walls down to 8 inc...

Страница 35: ...the performance of the circulator must be closely matched with the FIGURE 22 CIRCULATIONSYSTEM pressure of head loss of the entire system in order to provide the required flow through the heat pump In...

Страница 36: ...module model for sufficient capacity If the module selection is correct there is probably trapped air or a restriction in the piping circuit 8 Start the unit in cooling mode By moving the thermostat...

Страница 37: ...10 20 30 40 50 60 70 0 5 10 15 20 25 30 35 Flow GPM Head Feet FIGURE 25 PERFORMANCE MODEL WGPM 2C LOOP PUMP MODULE 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 Flow GPM Head Feet FIGURE 24 PERFORMANCE...

Страница 38: ...oid coil Constant Flow Valve 7 provides correct flow of water to the unit regardless of variations in water pressure Observe the water flow direction indicated by the arrow on the side of the valve bo...

Страница 39: ...he well pump must be sized in such a way that three requirements are met 1 Adequate flow rate in GPM 2 Adequate pressure at the fixture 3 Able to meet the above from the depth of the well feet of lift...

Страница 40: ...suspended particles in the water is that it will erode metal parts pumps heat transfer coils etc So long as the filter is cleaned and periodically maintained suspended particles should pose no serious...

Страница 41: ...tion pumps normally consume more electrical energy than similarly sized submersible pumps Pipe the unit the same as a water well system D Size the pump to provide necessary GPM for the ground water he...

Страница 42: ...of 49 FIGURE 28 WATER WELL SYSTEM 12 to 15 WELL CAP PITLESS ADAPTER SUBMERSIBLE PUMP PERFORATED PLASTIC CASING DROP PIPE LAKE or POND WATER LEVEL GRAVEL FILL TO PRESSURE TANK ELECTRICAL LINE WATER SU...

Страница 43: ...source water loop A cooling tower provides evaporative cooling to the loop water thus maintaining a constant supply temperature to the unit When utilizing open cooling towers chemical water treatment...

Страница 44: ...pressure equalization through the compressor This may leave low side shell and suction line tubing pressurized If the brazing torch is then applied to the low side while the low side shell and suctio...

Страница 45: ...it s air noise cabinet duct or motor noise interview customer if necessary Air noise High static creating high blower speed Is airflow set properly Does removing filter cause blower to slow down Check...

Страница 46: ...M 2 0 CONTROL control in cast aluminum can with air vents on the back of the can WITH AN ECM 2 3 CONTROL control containing black potting for water protection in black deep drawn steel case with no ve...

Страница 47: ...Defective Air Volume Low Air Filters Dirty Undersized or Restricted Ductwork Auxillary Heat Upstream of Coil Compressor Will Not Run No Power at Contactor Compressor Will Not Run Power at Contactor Co...

Страница 48: ...alled 5 User s Owner s Name Address 6 Unit Location WATER SYSTEM INFORMATION 7 Open Loop System Water Well Closed Loop System A If Open Loop where is water discharged 8 The following questions are for...

Страница 49: ...ontactor A 19 Amperage at compressor common terminal A 20 Suction line temperature 6 from compressor F 21 Superheat at compressor F 22 Liquid line temperature at metering device F 23 Coil subcooling F...

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