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Bosch HK050-1XXX-RE Installation Instructions Manual

Hk series electric heater package.
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6 720 220 328
Revised 05-13
HK seRIes
eleCTRIC HeaTeR
PaCKaGe
InsTallaTIon InsTRUCTIons

Table of ConTenTs

Introduction .......................................................... 2
Pre-Installation ..................................................... 2
Components List ................................................... 2
Installation ............................................................ 3
CE/TAxxx-xHZ, CE/TAxxx-xCF) ............................ 3
CE/TAxxx-xAH, TAxxx-xAC) .................................. 6
Heater Elements (HK150, HK200) ....................... 8
CE/TAxxx-xAH, TAxxx-xAC) ................................ 10
TA-VT & TA025-HZ Units ....................................... 10
Heater Elements (HK150, HK200) ..................... 12
Electric Heater Electrical Data ............................ 14
Typical Wiring Diagrams ................................. 15-16

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   Summary of Contents for Bosch HK050-1XXX-RE

  • Page 1: Table Of Contents

    HK seRIes eleCTRIC HeaTeR PaCKaGe InsTallaTIon InsTRUCTIons Table of ConTenTs Introduction ............2 Pre-Installation ............. 2 Components List ........... 2 Installation ............3 Packaged Units (CE/TAxxx-xVT, CE/TAxxx-xHZ, CE/TAxxx-xCF) ......3 Split Units (CE/TAxxx-xAV, CE/TAxxx-xAH, TAxxx-xAC) ........6 CE-VT / HZ & TA-HZ (TA025-HZ excluded) Units ..6 Units with 5, 7.5, or 10 kW Electrical Heater Elements (HK050, HK075, HK100) ..

  • Page 2: Introduction

    Improper installation of the electric resistance heater can result in severe injury or death due Caution Bosch HK Series Heater Package is a field to electrical shock or fire. installable electric resistance heater kit designed Only trained and qualified personnel should for use with the CE and TA series heat pumps.

  • Page 3: Installation

    Quantities used will depend on the heater package type. For technical assistance contact your local distributor or Call Bosch Technical Support: 866-642-3198 3. Ensure following tools and supplies, needed figure #1 – showing Collar mounted on blower housing,...

  • Page 4

    HK series Installation for proper reconnection. When reconnecting the The mounting holes for the heater box have been line voltage wires to the contactor, apply 22 in-lbs pre-punched in the posts. Make sure no wires are of torque. pinched between the metal parts. Connect or reconnect wires from the heater element(s) as was sTeP 5: Install the element cover over the heater marked in step 4 or follow electrical wiring diagram...

  • Page 5

    HK series Installation Connect the three wires that were cut and Table 2r Only) stripped in Step 8(e) together using a yellow Heater Box Heat Pump Box wire nut connector supplied with the kit. Yellow Secure with electrical tape. Blue g.

  • Page 6: Split Units (ce/taxxx-xav, Ce/taxxx-xah, Taxxx-xac)

    HK series Installation b. Strip the insulation off of the “W1” and “EM” STEP 13: Remove the wiring diagram that is wires and insert into the thermostat control adhered to the back side of the front panel. Replace wire block on the motor control board. Connect with the wiring diagram that was included with the the other end of the wires to the back of the heater kit.

  • Page 7

    HK series Installation sTeP 1: DISCONNECT POWER: been properly labeled and disconnected before proceeding. Always disconnect electrical power to the air Remove existing Electrical Box and set aside. handler and condensing section completely from its electrical source prior to any servicing. sTeP 2: Remove the heater collar cover plate(s) to install the heater elements.

  • Page 8: Units With 5, 7.5, Or 10 Kw Electrical Heater Elements (hk050, Hk075, Hk100)

    Installation HK Series Remove the wires from heater contactor and By adding electrical heaters, the electrical terminal block at “L1” only. If wires are removed demand may change quite significantly. The Caution during installation, ensure that they are marked for existing wires between the circuit panel and proper reconnection.

  • Page 9

    HK Series Installation • 0/2 AWG 120 in-lbs b. Reconnect the low voltage wires from the condensing section to the terminal block in the • 8 AWG 40 in-lbs air handler that was removed in Step 1(g). The • 10-14 AWG 35 in-lbs “C”, “R”, “O”, “Y1”, &...

  • Page 10: Split Units (ce/taxxx-xav, Ce/taxxx-xah, Taxxx-xac)

    10 HK series Installation a. Turn on the disconnect switches or breaker c. Remove the access panel from the front of the switches to the “ON” position for the air handler exposing the blower section. Place condensing section and the air handler. the panel mounting screws aside in a safe place as they will need to be reused when putting the b.

  • Page 11

    Installation HK series voltage wires to the contactor, apply 22 in-lbs of torque. sTeP 6: Install the element cover over the heater insert(s). These are secured with a tab at one end of the cover and two of the supplied sheet metal screws at the other end (See Figure 2).

  • Page 12: Units With 5, 7.5, Or 10 Kw Electrical Heater Elements (hk050, Hk075, Hk100)

    Installation 12 HK Series following torques when tightening the line By adding electrical heaters, the electrical voltage wires: demand may change quite significantly. The existing wires between the circuit panel and • 0/2 AWG 120 in-lbs the air handler may not be sufficient and may •...

  • Page 13

    Installation HK Series c. Reconnect the thermostat wire terminal block sTeP 12: Remove the wiring diagram that is that was removed in Step 2(d) to the motor adhered to the back side of the front panel. Replace control board. with the wiring diagram that was included with the heater kit.

  • Page 14: Electric Heater Electrical Data

    14 HK Series electric Heater electrical Data Electric Heater Electrical Data Table 3: Heater MCA* MOCP* Heater Number Circuit Amps Phase Model of Stages Fuses 17.3 20.0 F1/F2 30.4 33.8 HK050-1XXX-Res HK075-1XXX-Res 26.0 30.0 F1/F2 41.2 46.3 34.6 40.0 F1/F2 52.0 58.8 HK100-1XXX-Res...

  • Page 15: Typical Wiring Diagrams

    HK Series Typical Wiring Diagrams eleCTRIC HeaT DIaGRaM - HK seRIes HeaTeR PaCKaGe Heater Control box for Packaged Units Rewiring fan Motor With electric Heat Revised 05-13 Subject to change without prior notice 6 720 220 328...

  • Page 16

    16 HK Series Typical Wiring Diagrams eleCTRIC HeaT DIaGRaM - HK seRIes HeaTeR PaCKaGe Heater Control box for 1 or 2 stage air Handler Units Rewiring fan Motor With electric Heat 6 720 220 328 Subject to change without prior notice Revised 05-13...

  • Page 17

    notes HK Series Revised 05-13 Subject to change without prior notice 6 720 220 328...

  • Page 18

    18 HK Series notes 6 720 220 328 Subject to change without prior notice Revised 05-13...

  • Page 19

    HK Series notes Revised 05-13 Subject to change without prior notice 6 720 220 328...

  • Page 20

    601 N.W. 65th Court, Ft. Lauderdale, FL 33309 Phone: 866-642-3198 | Fax: 954-776-5529 www.bosch-climate.us...

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