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Bard Q24A1 Installationair conditioner Instructions Manual

Manual is about: Q-TEC SERIES PACKAGED AIR CONDITIONER

Summary of Q24A1 Installationair conditioner

  • Page 1

    Manual 2100-522b page 1 of 38 bard manufacturing company, inc. Bryan, ohio 43506 since 1914 . . . Moving ahead, just as planned. Manual: 2100-522b supersedes: 2100-522a file: vol ii tab 14 date: 12-15-11 models: q24a1 q30a1 q36a1 q42a1 q48a1 q60a1 q-tec series packaged air conditioner installation i...

  • Page 2

    Manual 2100-522b page 2 of 38 contents figures figure 1 unit dimensions .......................................... 7 figure 2 air seal under unit ...................................... 8 figure 3 removal of unit from skid ......................... 8 figure 4 unit on appliance cart for moving ..........

  • Page 3

    Manual 2100-522b page 3 of 38 getting other information and publications these publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard. Natio...

  • Page 4

    Manual 2100-522b page 4 of 38 q-t ec series general information q-t ec model nomenclature internal controls x - standard • high pressure switch • low pressure switch • compressor control module w/time delay j - alarm relay + lac + above filter options x - 1 inch fiberglass (standard) f - 2 inch fibe...

  • Page 5

    Manual 2100-522b page 5 of 38 table 1 factory built-in electric heat table sl e d o m a- 1 a 4 2 q a- 1 a 0 3 qb - 1 a 4 2 qb - 1 a 0 3 qc - 1 a 4 2 qc - 1 a 0 3 q a- 1 a 6 3 q a- 1 a 2 4 q a- 1 a 8 4 q b- 1 a 6 3 q b- 1 a 2 4 q b- 1 a 8 4 q c- 1 a 6 3 q c- 1 a 2 4 q c- 1 a 8 4 qa - 1 a 0 6 qb - 1 a...

  • Page 6

    Manual 2100-522b page 6 of 38 1 maximum size of the time delay fuse or hacr type circuit breaker for protection of field wiring conductors. 2 based on 75°c copper wire. All wiring must conform to the national electrical code and all local codes. 3 these “minimum circuit ampacity” values are to be us...

  • Page 7

    Manual 2100-522b page 7 of 38 figure 1 unit dimensions.

  • Page 8

    Manual 2100-522b page 8 of 38 shipping damage upon receipt of equipment, the carton should be checked for external signs of shipping damage. The skid must remain attached to the unit until the unit is ready for installation. If damage is found, the receiving party must contact the last carrier immed...

  • Page 9

    Manual 2100-522b page 9 of 38 handling unit after removal from skid the unit will have to be turned sideways and removed from the skid to fit through a 36" doorway. 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 ...

  • Page 10

    Manual 2100-522b page 10 of 38 figure 6 ducted application figure 5 installation with free blow plenum.

  • Page 11

    Manual 2100-522b page 11 of 38 duct work all duct work must be properly sized for the design airflow requirement of the equipment. Air conditioning contractors of america (acca) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly ...

  • Page 12

    Manual 2100-522b page 12 of 38 fresh air intake this unit is equipped with a fresh air damper assembly. The damper blade is locked in the closed position when the unit is shipped from the factory. To allow the damper to operate remove the two plastic locking pins, one on each end of the blade. This ...

  • Page 13

    Manual 2100-522b page 13 of 38 water trap figure 11 rear drain (top view) wall (maximum 10" for rear drain) couplings not shown but recommended for ease of removability for service. Sleeve drain line wall bracket unit figure 10 standard rear drain figure 9 optional side drain (side view) installatio...

  • Page 14

    Manual 2100-522b page 14 of 38 m is -2469 drain bo x w al l sl eeve o verfl o w tube caul k around t u be figure 12a.

  • Page 15

    Manual 2100-522b page 15 of 38 supplied with drain box kit 3/4" plastic pipe nipple horizontal to floor) (tighten threads so tee is threads) (apply teflon tape to rear drain connection in q/tec product 1/2" slip x 1/2" slip x 3/4" npt tee supplied with drain box kit plug installed in side q/tec drai...

  • Page 16

    Manual 2100-522b page 16 of 38 remove knock-out for indoor drain hose connector mis-2471 figure 12c (if used).

  • Page 17

    Manual 2100-522b page 17 of 38 mis-2472 drain hose from indoor drain pan. Move hose from attachment in lower drain pan and slide onto drain box barb fitting, securing with supplied clamp if outdoor pan is bypassed. ( will reduce risk of algae growth in the outdoor pan but at a slight cooling perform...

  • Page 18

    Manual 2100-522b page 18 of 38 washer sleeve stud mis-2689 nut lower control panel condenser door (removed) return grille figure 13a unit mounting bottom trim piece bottom trim extension mounting bracket side trim (2 pcs.) side trim (2 pcs.) cabinet side panel enlarged view of mounting bracket showi...

  • Page 19

    Manual 2100-522b page 19 of 38 installation instructions mounting the unit when installing a q-t ec unit near an interior wall on the left side, a minimum of 8 inches is required; 12 inches is preferred. When installing a q-t ec unit near an interior wall on the right side, a minimum of 18 inches is...

  • Page 20

    Manual 2100-522b page 20 of 38 the standard climate control option x is a remote thermostat connection terminal block. See figure 17 for wiring diagram. Compatible thermostats are listed in table 4. The climate control option a is an electronic, non- programmable manual or auto changeover thermostat...

  • Page 21

    Manual 2100-522b page 21 of 38 low voltage connections for ddc control fan only energize g cooling mode energize y1, g 1st stage heating energize g, w1 2nd state heating energize g, w2 (if employed) ventilation energize g, f general this unit is equipped with a variable speed ecm motor. The motor is...

  • Page 22

    Manual 2100-522b page 22 of 38 figure 16 table 4 wall thermostats t a t s o m r e h t s e r u t a e f t n a n i m o d e r p 0 6 0 - 3 0 4 8 ) 5 4 4 - 0 2 1 1 ( t a e h e g a t s 3 ; l o o c e g a t s 3 c i n o r t c e l e e l b a m m a r g o r p - n o n / e l b a m m a r g o r p l a n o i t n e v n ...

  • Page 23

    Manual 2100-522b page 23 of 38 figure 17 remote thermostat wiring diagram “x” thermostat option note: on option x or a the cs2000a* (or other field provided means to control ventilation) must be used if any of the motorized ventilation options are installed. 1 y2 w1 r c w2 y1 e 1 2 g y2 a y1 w2 c r ...

  • Page 24

    Manual 2100-522b page 24 of 38 figure 18 unit mounted thermostat wiring diagram “a” thermostat option note: on option x or a the cs2000a* (or other field provided means to control ventilation) must be used if any of the motorized ventilation options are installed. W1/e 3 purple l orange red/white bl...

  • Page 25

    Manual 2100-522b page 25 of 38 figure 19 unit mounted thermostat wiring diagram “d” thermostat option w1/e 8403-060 "d" thermostat option y2 12 plug #2 brown g purple orange c blue 9 10 6 5 black/white a 3 11 8 4102-070 4 r y1 7 red/white w2 1 yellow 2 brown/white.

  • Page 26

    Manual 2100-522b page 26 of 38 figure 20 unit mounted thermostat wiring diagram “h” thermostat option with co 2 3 2 4 5 1 24vac analog part #8201-062 w1/e y2 orange red/white red black blue 9 10 6 part #8403-060 5 black/white g 3 11 8 4102-071 r y1 plug #2 c w2 1 yellow 12 purple brown 7 a out part ...

  • Page 27

    Manual 2100-522b page 27 of 38 start up these units require r-410a refrigerant and polyol ester oil. General: 1. Use separate service equipment to avoid cross contamination of oil and refrigerants. 2. Use recovery equipment rated for r-410a refrigerant. 3. Use manifold gauges rated for r-410a (800 p...

  • Page 28

    Manual 2100-522b page 28 of 38 start up description of standard equipment high pressure switch provides refrigerant circuit high pressure protection. Includes lockout circuit that is resettable from room thermostat. Compressor control module provides short cycle protection for the compressor which e...

  • Page 29

    Manual 2100-522b page 29 of 38 all three phase scroll compressors used in the q-t ec series are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same fusite terminal should maintain ...

  • Page 30

    Manual 2100-522b page 30 of 38 6. Some service requires the need to remove the unit from the wall including replacement of the indoor coil and/or the outdoor coil. Also servicing the outdoor fan motor or fan blade will require removing the unit from the wall if the unit is installed at a height that...

  • Page 31

    Manual 2100-522b page 31 of 38 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 the plug. While squeezing the tabs, pull the plug out of the socket. 4. The qerv i...

  • Page 32

    Manual 2100-522b page 32 of 38 figure 21 fresh air damper removal mounting screw.

  • Page 33

    Manual 2100-522b page 33 of 38 figure 22 qerv removal mounting screws front fill lower blower assembly power connector power connectors.

  • Page 34

    Manual 2100-522b page 34 of 38 optional climate controls sequence of operation the climate control option a is an electronic, non- programmable manual or auto changeover thermostat. The thermostat may be manually set to heat or cool mode. The thermostat will maintain the temperature set on the therm...

  • Page 35

    Manual 2100-522b page 35 of 38 troubleshooting ge ecm ™ motors caution: disconnect power from unit before removing or replacing connectors, or servicing motor. To avoid electric shock from the motor’s capacitors, disconnect power and wait at least 5 minutes before opening motor. Symptom cause/proced...

  • Page 36

    Manual 2100-522b page 36 of 38 troubleshooting ge ecm ™ motors cont’d. Motor motor ok when r > 100k ohm ecm 2.0 only remove hex head bolts connector orientation between 4 and 8 o'clock drip loop back of control figure 5 winding test figure 4 note: use the shorter bolts and alignment pin supplied whe...

  • Page 37

    Manual 2100-522b page 37 of 38 fan blade setting dimensions any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions in table 5 be checked and blade adjusted in or out of the motor shaft accordingly. 1 maximum esp (inches wc) shown is with 1" thi...

  • Page 38

    Manual 2100-522b page 38 of 38 low side pressure ± 4 psig high side pressure ± 10 psig tables are based upon rated cfm (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to seria...