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Bard I36Z1-A Installation instructions manual

Manual is about: PACKAGED HEAT PUMP

Summary of I36Z1-A

  • Page 1

    I-tec series packaged heat pump models: installation instructions bard manufacturing company, inc. Bryan, ohio 43506 www.Bardhvac.Com manual: 2100-578e supersedes: 2100-578d date: 11-10-14 i36z1-a i36z1-b i36z1-c i48z1-a i48z1-b i48z1-c i60z1-a i60z1-b i60z1-c page 1 of 41 mis-3116.

  • Page 2: Contents

    Manual 2100-578e page 2 of 41 contents getting other information and publications for more information, contact these publishers: ........... 3 general ......................................................................... 4 ansi z535.5 definitions ...................................................

  • Page 3

    Manual 2100-578e page 3 of 41 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 2100-578e page 4 of 41 general the equipment covered in this manual is to be installed by trained, experienced service and installation technicians. The i-tec must be installed with the bard manufactured iws wall sleeve and ilg louver grille accessories. These are sold as separate accessories...

  • Page 5: I-Tec

    Manual 2100-578e page 5 of 41 table 1 factory built-in electric heat table models i36z1-a i36z1-b i36z1-c i48z1-a i48z1-b i60z1-b i48z1-c i60z1-c i60z1-a kw 240v-1 208v-1 240v-3 208v-3 460v-3 240v-1 208v-1 240v-3 208v-3 460v-3 240v-1 208v-1 btuh btuh btuh btuh btuh btuh btuh btuh btuh btuh btuh btuh...

  • Page 6

    Manual 2100-578e page 6 of 41 table 2 electrical specifications these “minimum circuit ampacity” values are to be used for sizing the field power conductors. Refer to the national electric code (latest revision), article 310 for power conductor sizing. Caution : when more than one field power conduc...

  • Page 7

    Manual 2100-578e page 7 of 41 3 3 4 " 24 1 2 " 22 1 4 " lower section 71 3 4 " upper section right side view unit specification sheet top view front view mi s-3114 a (2) unit drains back view sleeve outer supply air return air sleeve inner return air inner sleeve outer sleeve (2) opt. Unit drain ent...

  • Page 8

    Manual 2100-578e page 8 of 41 center of gravity "z" "x" "y" mis-3268 center of gravity unit tested front of unit door to center left side to center floor to center crv & erv floor to center no vent "x" dimension "y" dimension "z" dimension "z" dimension i36z1-a, b 13½" 31" 43½" 47" i36z1-c 13½" 31½"...

  • Page 9: Warning

    Manual 2100-578e page 9 of 41 handling unit after removal from skid if a wide and tall opening exists, the i-tec can be moved as a complete assembled unit. If not, use the following directions for dis-assembly to allow it to pass through a 36" wide door. 1. Depress and release both top & bottom door...

  • Page 10

    Manual 2100-578e page 10 of 41 required steps after final placement the compressor is secured to the base with two (2) bolts for shipping. Although the unit will perform as designed with the shipping bolts in place, there may be noticeable additional noise and vibration noted. To obtain the lowest n...

  • Page 11

    Manual 2100-578e page 11 of 41 35" 17 1 2 " " 3 4 18 7 3 8 " (4) optional unit mounting holes cl cl mounting holes (4) optional unit bracket * ** separate telescoping sleeves available for different wall thicknesses. Centered on optional top * * higher sill heights acheivable with base kit. Opening ...

  • Page 12

    Manual 2100-578e page 12 of 41 figure 3 compressor shipping bolts figure 4 removal of air duct compressor shipping bolt compressor shipping bolt crv air duct.

  • Page 13

    Manual 2100-578e page 13 of 41 installation 9'-5" minimum required height 9'-10" minimum clearance recommended to bottom of roof or fixed ceiling 3" riser field supplied duct mis-3199 turning vanes recommended minimum 12" 4" minimum from top of unit to duct bottom bottom of roof floor or fixed ceili...

  • Page 14

    Manual 2100-578e page 14 of 41 installation 9'-8" minimum required height 10'-1" minimum clearance recommended to bottom of roof or fixed ceiling 6" riser field supplied duct mis-3200 turning vanes recommended minimum 12" 4" minimum from top of unit to duct bottom floor or fixed ceiling bottom of ro...

  • Page 15

    Manual 2100-578e page 15 of 41 12" recommended 0" required 31 3/8" 12" min. 12" min. Filter access 48" min. 12" min. 12" 61 1/2" 48" min. 12" min. 61 1/2" 0" required 12" recommended min. For 12" min. 24" min. 24" min. 12" min. For left side access side 12" min. For right access wing wall constructi...

  • Page 16

    Manual 2100-578e page 16 of 41 duct work any heat pump is more critical of proper operating charge and an adequate duct system than a straight air conditioning unit. All duct work must be properly sized for the design airflow requirement of the equipment. Air conditioning contractors of america (acc...

  • Page 17

    Manual 2100-578e page 17 of 41 (2) unit drain entrances drain area drains insulate (2) optional unit (2) drain access locations mis-3115 a (2) optional drain holes in base wall base view 16 1/2" 18 3/4" 7 3/16" 40 3/4" 35" optional floor mounting holes condensate drain there are two condensate drain...

  • Page 18

    Manual 2100-578e page 18 of 41 d ref. A and b ref. (4) 5/16" - 1/2" non-tapping ref. E ref. (6) 5/16" - 3/4" non-tapping c (4) 1-1/2" long screws ref. E (18) 5/16" - 3/4" self tapping b c ref. Ref. Ref. A ref. D mis-3014 a use (4) 1-1/2" long louver grille to outer sleeve. Screws to attach to outer ...

  • Page 19

    Manual 2100-578e page 19 of 41 notice: in order to achieve optimum sound reduction, the following areas need insulated: 1. Outside wall. 2. Area between sleeve and wall. 3. Drain area behind unit. (size varies) outdoor grille inside wall and sleeve interior floor area between wall outside wall (insu...

  • Page 20: Installation Instructions

    Manual 2100-578e page 20 of 41 installation instructions mounting the unit the wall sleeve is attached to the i-tec unit from the outside of the building. See figures 9a & 9b. Refer to wall sleeve manual 2100-562 supplied with sleeve. Following are the steps for attaching the i-tec to the wall sleev...

  • Page 21: Caution

    Manual 2100-578e page 21 of 41 the standard unit includes a remote thermostat connection terminal strip. See figures 11 through 16 for connection diagrams. Compatible thermostats are listed in table 4. Table 3 — operating voltage range note: the voltage should be measured at the field power connecti...

  • Page 22

    Manual 2100-578e page 22 of 41 figure 11 basic heat pump with no ventilation package 6 4 w3 a d l b/w1 y2 y1 rt g c w2 low voltage term. Strip r 3 sc w1/e a d l o/b y2 y1 24v g com w2 completestat model #cs9b-tho or model #cs9be-tho sc sc gnd thermostat w1/e a yo/d l o/b y2 y1 r g c w2 bard #8403-06...

  • Page 23

    Manual 2100-578e page 23 of 41 figure 12 heat pump with crv, without co 2 control 6 4 w3 a d l b/w1 y2 y1 rt g c w2 low voltage term. Strip r 3 com g 24v y1 y2 o/b l d a gnd sc sc sc completestat model #cs9b-tho or model #cs9be-tho w2 w1/e thermostat w1/e a yo/d l o/b y2 y1 r g c w2 bard #8403-060 b...

  • Page 24

    Manual 2100-578e page 24 of 41 figure 13 heat pump with crv and co 2 control sc w1/e a d l o/b y2 y1 24v g com w2 completestat model #cs9b-tho or model #cs9be-tho sc sc gnd 5 2 1 6 w1/e a yo/d l o/b y2 y1 r g c w2 thermostat bard #8403-060 w1/e a d l o/b y2 y1 24v g com w2 completestat model #cs9b-t...

  • Page 25: Start Up

    Manual 2100-578e page 25 of 41 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 26: Start Up

    Manual 2100-578e page 26 of 41 start up description of standard equipment solid state electronic heat pump control provides efficient 30, 60 or 90-minute defrost cycle. A thermistor sensor and speed up terminal for service along with a 8-minute defrost override are standard on the electronic heat pu...

  • Page 27

    Manual 2100-578e page 27 of 41 sequence of operation cooling part load – circuit r-y1 makes at thermostat pulling in compressor contactor, starting the compressor and outdoor motor. The g (indoor motor) circuit is automatically completed on any call for cooling operation or can be energized by manua...

  • Page 28

    Manual 2100-578e page 28 of 41 defrost cycle the defrost cycle is controlled by temperature and time on the solid state heat pump control. See figure 14. When the outdoor temperature is in the lower 40°f temperature range or colder, the outdoor coil temperature is 32°f or below. This coil temperatur...

  • Page 29: R-410A

    Manual 2100-578e page 29 of 41 i-tec commercial room ventilator system general description the i-tec commercial room ventilator (crv) is designed to be used with all bard i-tec models. The only intent of this device is to provide the required ventilation by delivering fresh air to meet i.A.Q. (indoo...

  • Page 30

    Manual 2100-578e page 30 of 41 figure 15 crv motor speed/cfm configuration med. Hi 7961-7554 m oto r spee ds lo med. Lo hi black speed blue med-lo vent option intake/exhaust speeds 7961-755-2 red hi med-hi blue orange nom. Cfm black wire color lo orange red wire with white trace. 300 375 450 525 to ...

  • Page 31

    Manual 2100-578e page 31 of 41 figure 16 crv speed change terminal access blower speed control location blower speed control blower removed for clarity crv door to access crv components remove (9) screws from mis-3207 a crv intake blower note: crv exhaust blower is behind intake blower.

  • Page 32

    Manual 2100-578e page 32 of 41 figure 17 ventilation airflow diagram indoor air vent exhaust supply air outdoor air blower blower intake vent supply blower return air mis-3208.

  • Page 33

    Manual 2100-578e page 33 of 41 annual maintenance 1. Inspect and conduct the same procedures as outlined under quarterly maintenance. 2. To maintain peak latent (moisture) removal capacity, it is recommended that the energy recovery wheels be sprayed with a diluted nonacid based evaporator coil clea...

  • Page 34: Troubleshooting

    Manual 2100-578e page 34 of 41 symptom description, check & possible causes what & how to check / repair compressor will not start (heating or cooling) 1. Check for led illumination. Is there an led illuminated on the board (flashing)? Yes = go to step #2; no = go to step #3 2. Check for error codes...

  • Page 35

    Manual 2100-578e page 35 of 41 checking temperature sensor 1. Disconnect temperature sensor from board and from right-hand outdoor coil. 2. Use an ohmmeter and measure the resistance of the sensor. Also use ohmmeter to check for short or open. 3. Check resistance reading to chart of resistance use s...

  • Page 36: Warning

    Manual 2100-578e page 36 of 41 troubleshooting ecm™ 142r outdoor fan motor you must obtain the correct replacement motor from the manufacturer that is a direct replacement for the failed motor. Using the wrong motor voids all warranties and may produce unexpected results. Do not operate motor withou...

  • Page 37

    Manual 2100-578e page 37 of 41 check line power to motor check between red and black wires for line power verify ground by checking green wire to l1 and l2 line power check for 24vac common signal to motor (against transformer "r" signal) check "br" terminal of fan logic control board check "blue" f...

  • Page 38

    Manual 2100-578e page 38 of 41 troubleshooting indoor ecm™ blower 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 c...

  • Page 39

    Manual 2100-578e page 39 of 41 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 when replacing an ecm 2.0 control. Figure 3...

  • Page 40

    Manual 2100-578e page 40 of 41 fan blade setting dimensions the position of the fan blade should be flush with the leaving face of the orifice plate. Check to make sure the blades do not extend beyond the rear casing of the unit. Spin the blade by hand to make sure it does not hit the ring. Refriger...

  • Page 41

    Manual 2100-578e page 41 of 41 table 10a — full load cooling pressure/temperature table 11a part load cooling pressure/temperature table 10b — full load heating pressure/temperature table 11b part load heating pressure/temperature air temperature entering outdoor coil °f model return air temp. Press...