Lennox CB29M-21 Unit Information Download Page 10 | Manualshive

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Page 10

CB29M & CB30M PARTS ARRANGEMENT

FIGURE 1

CONTROL BOX

ELECTRIC HEAT

SECTION

BLOWER

COMPARTMENT

COIL

HORIZONTAL

DRAIN PAN

EXPANSION

VALVE

BLOWER ACCESS

PANEL

COIL ACCESS

PANEL

FIGURE 2

CB29M and CB30M CONTROL BOX

TRANSFORMER

(T1)

SMALL ELECTRIC HEAT

KNOCK OUT FOR

2.5 – 15 kW

TERMINAL

STRIP (TB1)

TERMINAL

STRIP (TB1)

BRACKET FOR

TERMINAL STRIP

BLOWER

RELAY (K3)

LARGE ELECTRIC HEAT

KNOCK OUT FOR

20 – 30 kW

GROUNDING

LUGS

C

G

W1

W2

W3

R

TRANSFORMER (T26)

(575 VOLT ONLY)

DOOR INTERLOCK

SWITCH (S51)

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Summary of Contents for CB29M-21

Page 1: ...SEER air conditioner and heat pump line and the CB30M series units are designed to be matched with the 12 and 13 SEER air conditioner and heat pump lines While these blower coil units are designed to...

Page 2: ...Shipping weight lbs kg 45K30 3 1 Up Flow Only Down Flow Combustible Base Ship wt lbs kg 34J72 8 4 34J73 8 4 ECB29 2 5 Output Btuh kW 9 500 2 8 10 000 2 9 ECB29 2 5 A F U E 100 100 ECB29 5 ECB29 5CB O...

Page 3: ...5 460 365 15 35 1170 550 430 1080 510 385 965 455 360 20 50 1150 540 425 1065 500 375 955 450 350 25 60 1125 530 420 1045 495 370 940 445 340 30 75 1100 520 410 1020 480 360 920 435 330 40 100 1035 49...

Page 4: ...695 565 1250 590 490 20 50 1675 790 690 1460 690 550 1235 585 475 25 60 1645 775 680 1435 675 535 1220 575 460 30 75 1610 760 665 1405 665 520 1200 565 445 40 100 1525 720 635 1335 630 490 1140 540 4...

Page 5: ...0 665 1500 710 555 25 60 2105 995 1030 2000 945 885 1880 890 780 1690 795 655 1480 700 550 30 75 2070 980 1020 1970 930 875 1855 875 770 1665 785 645 1460 690 540 40 100 2005 945 995 1910 900 855 1795...

Page 6: ...Wall Hanging Bracket Kit Shipping weight lbs kg 45K30 3 1 Up Flow Only Down Flow Combustible Base Ship wt lbs kg 34J72 8 4 34J73 8 4 ECB29 2 5 Output Btuh kW 9 500 2 8 10 000 2 9 ECB29 2 5 A F U E 10...

Page 7: ...505 310 10 25 1290 610 375 1190 560 325 1085 515 300 15 35 1265 600 370 1175 555 320 1085 510 295 20 50 1230 580 360 1145 540 310 1065 505 285 25 60 1180 555 350 1105 520 295 1030 485 270 30 75 1115 5...

Page 8: ...0 360 25 60 1610 760 505 1470 695 425 1300 615 355 30 75 1555 735 495 1425 675 415 1270 600 350 40 100 1430 675 465 1320 625 390 1195 565 330 50 125 1290 610 440 1195 565 365 1090 515 310 60 150 1135...

Page 9: ...30 570 20 50 2030 960 740 1950 920 635 1745 825 560 25 60 2000 945 730 1915 905 625 1725 815 550 30 75 1960 925 715 1880 885 610 1695 800 535 40 100 1870 880 685 1795 845 580 1630 770 505 50 125 1755...

Page 10: ...LOWER ACCESS PANEL COIL ACCESS PANEL FIGURE 2 CB29M and CB30M CONTROL BOX TRANSFORMER T1 SMALL ELECTRIC HEAT KNOCK OUT FOR 2 5 15 kW TERMINAL STRIP TB1 TERMINAL STRIP TB1 BRACKET FOR TERMINAL STRIP BL...

Page 11: ...h wire nuts inside the CB units D Transformer T1 All CB29M and CB30M series units use a single line voltage to 24VAC transformer mounted in the control box The transformer supplies power to the contro...

Page 12: ...ion refer to Service and Applica tion Note Corp 8909 L7 on 460 volt blower motor windings J Blower Motor Capacitor C4 All CB29M and CB30M series units use single phase direct drive motors with a run c...

Page 13: ...34 100 1 5 54 ECB29 5 208 3 8 12 800 2 4 26 5 kW ECB29 5 28K31 ECB29 5CB 1 step 220 4 2 14 300 2 4 27 5 kW ECB29 5CB 28K32 4 lbs 2 kg 1 step 230 4 6 15 700 2 4 28 4 lbs 2 kg 240 5 0 17 100 2 4 29 ECB...

Page 14: ...16 8 57 300 2 4 51 48 20 kW 28K39 14 lbs 6 kg 4 steps 230 18 4 62 700 2 4 53 49 240 20 0 68 200 2 4 55 52 ECB29 5 208 3 8 12 800 3 6 27 5 kW 28K31 ECB29 5CB 1 step 220 4 2 14 300 3 6 28 5 kW ECB29 5C...

Page 15: ...300 3 8 48 44 44 ECB29 5 28K31 208 3 8 12 800 4 6 29 5 kW 28K31 ECB29 5CB 1 step 220 4 2 14 300 4 6 30 5 kW ECB29 5CB 28K32 k 1 step 230 4 6 15 700 4 6 31 4 lbs 2 kg 240 5 0 17 100 4 6 32 ECB29 8 28K...

Page 16: ...s 3 kg 3 steps 230 9 2 31 400 3 8 34 6 lbs 3 kg 240 10 0 34 100 3 8 35 ECB29 15CB 208 11 3 38 400 3 8 44 CB29M 51 15 kW ECB29 15CB 28K44 3 steps 220 12 6 43 000 3 8 46 CB29M 51 15 kW 28K44 9 lbs 4 kg...

Page 17: ...5 kW ECB29 15 28K48 12 lbs 5 kg 3 steps 460 13 8 47 000 2 3 25 CB29M 65 12 lbs 5 kg 480 15 0 51 200 2 3 25 CB29M 65 ECB29 20 440 16 8 57 300 2 3 30 20 kW ECB29 20 28K49 18 lbs 8 kg 3 steps 460 18 4 62...

Page 18: ...5 54 ECB29 5 208 3 8 12 800 1 73 25 5 kW ECB29 5 28K31 ECB29 5CB 1 step 220 4 2 14 300 1 73 26 5 kW ECB29 5CB 28K32 4 lbs 2 kg 1 step 230 4 6 15 700 1 73 27 4 lbs 2 kg 240 5 0 17 100 1 73 28 ECB29 8 2...

Page 19: ...teps 220 16 8 57 300 1 73 50 48 20 kW 28K39 14 lbs 6 kg 4 steps 230 18 4 62 700 1 73 52 50 240 20 0 68 200 1 73 54 52 ECB29 5 208 3 8 12 800 2 4 26 5 kW 28K31 ECB29 5CB 1 step 220 4 2 14 300 2 4 27 5...

Page 20: ...300 2 4 47 43 43 ECB29 5 28K31 208 3 8 12 800 3 9 28 5 kW 28K31 ECB29 5CB 1 step 220 4 2 14 300 3 9 29 5 kW ECB29 5CB 28K32 k 1 step 230 4 6 15 700 3 9 30 4 lbs 2 kg 240 5 0 17 100 3 9 31 ECB29 8 28K...

Page 21: ...6 lbs 3 kg 3 steps 230 9 2 31 400 2 4 32 6 lbs 3 kg 240 10 0 34 100 2 4 33 ECB29 15CB 208 11 3 38 400 2 4 42 CB30M 51 CB30U 51 15 kW ECB29 15CB 28K44 3 steps 220 12 6 43 000 2 4 44 CB30U 51 15 kW 28K4...

Page 22: ...ECB29 15 28K48 12 lbs 5 kg 3 steps 460 13 8 47 000 1 9 24 CB30M 65 12 lbs 5 kg 480 15 0 51 200 1 9 25 CB30M 65 ECB29 20 440 16 8 57 300 1 9 30 20 kW ECB29 20 28K49 18 lbs 8 kg 3 steps 460 18 4 62 700...

Page 23: ...emand W1 W2 and W3 via jack plug 2 The contactor energizes the heating elements 4 Primary S15 Secondary S20 Temperature Limits Both the primary S15 and secondary S20 limits are located on the electric...

Page 24: ...ock The electric heat name plate and Table 13 show the amp ratings for the fuses used TABLE 13 ECB29 460 575 VOLTAGE FUSES UNIT FUSE SIZE AMPS ECB29 10 1 G 20 AMP ECB29 15 1 G 25 AMP ECB29 20 1 G 35 A...

Page 25: ...ENT HE1 ELECTRIC HEAT VESTIBULE PANEL ELECTRIC HEAT SEQUENCER RELAY K32 FIGURE 6 ECB29 8 8CB 10 10CB 208 230 SINGLE PHASE ELECTRIC HEAT VESTIBULE PARTS ARRANGEMENT TERMINAL BLOCK TB2 CIRCUIT BREAKER C...

Page 26: ...T SEQUENCER RELAY K33 CIRCUIT BREAKER CB2 PRIMARY LIMIT S15 SECONDARY LIMIT S20 ELECTRIC HEAT ELEMENT HE1 FIGURE 8 ECB29 20CB 208 230 SINGLE PHASE ELECTRIC HEAT VESTIBULE PARTS ARRANGEMENT CIRCUIT BRE...

Page 27: ...MIT S15 SECONDARY LIMIT S20 ELECTRIC HEAT ELEMENT HE1 HE2 not shown ELECTRIC HEAT ELEMENT HE6 ELECTRIC HEAT SEQUENCER RELAY K34 CIRCUIT BREAKER CB2 ELECTRIC HEAT SEQUENCER RELAY K35 ELECTRIC HEAT SEQU...

Page 28: ...low the horizontal drain pan should be removed from units in up flow configurations 3 After removing horizontal drain pan place unit in desired location Set unit so that it is level Connect return and...

Page 29: ...The shields are used for downflow applications only 2 Place blower coil on its right side 3 No further adjustment is necessary Set unit so it is sloped towards the drain pan 1 4 6mm See figure 16 FIGU...

Page 30: ...3 4 5 5 2 6 7 8 8 90 BEND 9 CABINET SUPPORT COIL SHOWN IN UP FLOW POSITION FOR EASY CONVERSION 90 BEND 8 BACK COIL END SEAL 8 8 TOP CAP 9 From the upflow position replace coil assembly Then flip cabi...

Page 31: ...UP OPERATION A Preliminary and Seasonal Checks 1 Make sure the unit is installed in accordance with the installation instructions 2 Inspect electrical wiring both field and factory installed for loos...

Page 32: ...ver the air desired according to the job requirements 4 External static pressure drop must not exceed 0 5 W C 1 2 kPa 5 Seal around the hole when the check is complete C Blower Speed Taps Blower speed...

Page 33: ...tandard size filters can be used Filters should be inspected monthly and must be replaced when dirty to ensure proper blower coil operation See table 15 for re placement filter sizes or see the sticke...

Page 34: ...there is a call for heat W1 of the thermostat energizes the electric heat relay K32 covered in the electric heat section 4 Blower motor B3 is energized on heating speed after K32 1 closes see electri...

Page 35: ...ies 24VAC to the indoor thermostat and electric heat if used HEATING 4 When there is a call for heat W1 of the thermostat energizes the electric heat blower relay K36 covered in the electric heat sect...

Page 36: ...VAC 2 When K32 1 closes the blower is energized on heating speed and economizer heat relay K43 is energized see 208 230VAC CB schematic 3 Assuming the N C primary S15 and secondary S20 limit switches...

Page 37: ...ed see 208 230VAC CB schematic 3 Assuming the N C primary S15 and secondary S20 limit switches are closed electric heat element HE1 is energized SECOND STAGE HEAT remove jumper between W2 and R 4 When...

Page 38: ...08 230VAC CB schematic 3 Assuming the N C primary S15 and secondary S20 limit switches are closed electric heat ele ment HE1 is energized SECOND STAGE HEAT remove jumper between W2 and R 4 When K32 2...

Page 39: ...ts HE1 and HE3 are energized 4 When K33 2 closes assuming the N C primary S15 and secondary S20 limit switches are closed electric heat element HE4 is energized SECOND STAGE HEAT remove jumper between...

Page 40: ...of the thermostat sends a se cond stage heat demand energizing the electric heat relays K33 and K116 with 24VAC 5 When K33 1 closes the blower if not energized is en ergized on heating speed and econ...

Page 41: ...tric heat relays K32 and K33 with 24VAC 2 When K32 1 and or K33 1 closes the blower is ener gized on heating speed and economizer heat relay K43 is energized see 208 230VAC CB schematic 3 When K32 1 K...

Page 42: ...gized 4 When K34 1 closes assuming the N C primary S15 and secondary S20 limit switches are closed electric heat element HE3 is energized SECOND STAGE HEAT remove jumper between W2 and R 5 When K34 2...

Page 43: ...closed electric heat contactor K15 is energized with 24VAC 3 The economizer if used is energized after K36 2 closes 4 When K36 3 closes the blower is energized on heating speed see 208 230VAC CB schem...

Page 44: ...Page 44 NOTES...

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