International comfort products RHH072 Installation Instructions Manual
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International comfort products RHH072 Installation Instructions Manual

International comfort products RHH072 Installation Instructions Manual

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INSTALLATION INSTRUCTIONS
R- -410A Single Package Heat Pump
NOTE: Read the entire instruction manual before starting
the installation.

TABLE OF CONTENTS

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  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS R- -410A Single Package Heat Pump RHH072 - - 102 NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS SAFETY CONSIDERATIONS ....

  • Page 2: Safety Considerations

    Initial Menu Display ..... . . WARNING Power Loss (Outage or Brownout) ... . Status .

  • Page 3: Rated Indoor Airflow (Cfm)

    Rated Indoor Airflow (cfm) Model Number Full Load Airflow (cfm) RHH072 2400 The table to the right lists the rated indoor airflow used RHH073 2400 for the AHRI efficiency rating for the units covered in this RHH090 3000 document. RHH102...
  • Page 4 Fig. 1 - - RHH 072- - 090 Unit Dimensional Drawing, sheet 1 of 2 516 01 3605 01 Specifications are subject to change without notice.
  • Page 5 Fig. 1 - - RHH 072- - 090 Unit Dimensional Drawing, sheet 2 of 2 516 01 3605 01 Specifications are subject to change without notice.
  • Page 6 Fig. 2 - - RHH 102 Unit Dimensional Drawing, sheet 1 of 2 516 01 3605 01 Specifications are subject to change without notice.
  • Page 7 Fig. 2 - - RHH 102 Unit Dimensional Drawing, sheet 2 of 2 516 01 3605 01 Specifications are subject to change without notice.

  • Page 8: Refrigeration System Components

    C11247 LOCATION DIMENSION CONDITION 48--- in. (1219 mm) Unit disconnect is mounted on panel 18--- in. (457 mm) No disconnect, convenience outlet option 18--- in. (457 mm) Recommended service clearance 12--- in. (305 mm) Minimum clearance 42--- in. (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall) 36--- in.
  • Page 9 Table 2 – Heating Mode (each circuit) Table 3 – Defrost Mode Component Status/Position Component Status/Position Defrost Thermostat Closed Reversing Valve De--- energized Outdoor Fan(s) Check Valve A Open Reversing Valve Energized Check Valve B Closed Check Valve A Closed Check Valve C Open Check Valve B...

  • Page 10: Installation

    INSTALLATION Review the following for recommended sequences for installation steps. Jobsite Survey Curb- - Mounted Installation — Complete the following checks before installation. Install curb 1. Consult local building codes and the NEC (National Install field- - fabricated ductwork inside curb Electrical Code) (ANSI/NFPA 70) for special installa- Install accessory thru- - base service connection package tion requirements.
  • Page 11 C13311 Fig. 6 - - Roof Curb Details 516 01 3605 01 Specifications are subject to change without notice.

  • Page 12: Slab Mount (Horizontal Units Only)

    Curb should be level. This is necessary for unit drain to If a plenum return is used on a vertical unit, the return function properly. Unit leveling tolerances are shown in should be ducted through the roof deck to comply with Fig.

  • Page 13: Positioning On Curb

    PLACE ALL SEAL STRIP IN PLACE REQUIRED (914-1371) BEFORE PLACING UNIT ON ROOF CURB. SPREADER BARS DUCT END "C" "A" SEE DETAIL "A" C11292 DIMENSIONS MAX WEIGHT UNIT RHH072/073 1130 88.0 2235 43.0 1090 41.5 1055 RHH090 1340 88.0 2235 43.0 1090 49.5...

  • Page 14: Step 8 - Install Outside Air Hood

    Step 8 — Install Outside Air Hood Economizer Hood and Two- - Position Hood — NOTE: If the power exhaust accessory is to be installed Economizer and Two Position Damper Hood on the unit, the hood shipped with the unit will not be Package Removal and Setup - - Factory Option used and must be discarded.

  • Page 15: Step 9 - Install External Condensate Trap And Line

    5. Open the filter clips which are located underneath the hood top. Insert the aluminum filter into the bottom filter rack (hood divider). Push the filter into position MINIMUM PITCH 1” (25mm) PER BASE RAIL past the open filter clips. Close the filter clips to lock 10’...

  • Page 16: Fire Hazard

    unit disconnect. On a unit without a unit- - mounted disconnect, connect the source leads to compressor contactor C and indoor fan contactor IFC pressure lugs with unit field power leads. ELECTRIC DISCONNECT SWITCH Field power wires are connected to the unit at line- - side COPPER pressure lugs on compressor contactor C and indoor fan WIRE ONLY...

  • Page 17: Units Without Factory- - Installed

    Convenience Outlets — 10. Secure the handle to the painted cover with (2) screws and lock washers supplied. WARNING 11. Engaging the shaft into the handle socket, re- - install (3) hex screws on the NFD enclosure. 12. Re- - install the unit front panel. ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death.

  • Page 18: Optional Thru- - Base Connections

    Mount the weatherproof cover to the backing plate as shown in Fig. 22. Remove two slot fillers in the bottom of the cover to permit service tool cords to exit the cover. Check for full closing and latching. COVER – WHILE-IN-USE RECEPTACLE WEATHERPROOF NOT INCLUDED...

  • Page 19: Units Without Thru- - Base Connections

    IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately. LOW VOLTAGE CONDUIT Operation on improper line voltage or excessive phase CONNECTOR imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable warranty.

  • Page 20: Central Terminal Board

    For wire runs up to 50 ft. (15 m), use no. 18 AWG (American Wire Gage) insulated wire [35_C (95_F) minimum]. For 50 to 75 ft. (15 to 23 m), use no. 16 AWG insulated wire [35_C (95_F) minimum]. For over 75 ft. (23 m), use no.
  • Page 21 Table 5 – RHH Defrost Board I/O and Jumper Configurations Inputs Point Name Type of I/O Connection Pin Number Unit Connection Note G Fan DI, 24Vac P2--- 3 CTB--- G Y1 Cool 1 DI, 24Vac P2--- 5 CTB--- Y1 Y2 Cool 2 DI, 24Vac P2--- 4 CTB--- Y2...

  • Page 22: Unit Without Thru- - Base Connection Kit

    Unit Without Thru- - Base Connection Kit — DISCONNECT MOUNTING LOCATION Pass the thermostat control wires through the hole provided in the corner post; then feed the wires through the raceway built into the corner post to the control box. Pull the wires over to the terminal strip on the upper- - left corner of the Central Terminal Board (CTB).

  • Page 23: Single Point Boxes And Supplementary Fuses

    Table 7 – Heater Model Number Bare Heater Model Number Heater Sales Package P/N Includes: Bare Heater Carton and packing materials Installation sheet Single Point Boxes and Supplementary Fuses — Low- - Voltage Control Connections — When the unit MOCP device value exceeds 60- - A, Pull the low- - voltage control leads from the heater unit- - mounted supplementary fuses are required for each module(s) - - VIO and BRN (two of each if two modules...

  • Page 24: Economi$Er R X (Factory- -Installed Option)

    EconoMi$er X (Factory- -Installed Option) Specifications W7220 Economizer Module — The module is designed for use with 2 to 10 Vdc or bus communicating actuator. The module includes terminals for CO sensor, mixed air sensor, and an outdoor dry bulb sensor.

  • Page 25: Outputs

    Outputs — Table 8 – Economizer Module - - Left Hand Terminal Blocks Actuator signal: 2- - 10 Vdc; minimum actuator impedance is 2k ohm; bus two- - wire output for bus communicating Label Type Description actuators. Top Left Terminal Block Exhaust fan, Y1, Y2 and AUX1 O: 20k NTC Supply Air Temperature Sensor...

  • Page 26: Co 2 Sensor Wiring

    for the power supplies are common. See Fig. 39 for CO sensor wiring. SENSOR (HOT) BLACK YELLOW ANALOG BROWN – Switch ORANGE Label GREEN POWER SUPPLY. PROVIDE DISCONNECT Switches MEANS AND OVERLOAD PROTECTION AS REQUIRED. C14158 Fig. 39 - - Wiring for CO Sensor Interface Overview S-Bus...

  • Page 27: Menu Structure

    To use the keypad when working with menus: S SYSTEM SETUP S Press the (Up arrow) button to move to the previous S ADVANCED SETUP menu. S CHECKOUT S Press the (Down arrow) button to move to the next S ALARMS menu.
  • Page 28 Table 12 - - Menu Structure (cont) Parameter Parameter EXPANDED PARAMETER NAME Menu Parameter Default Range and Increment Notes Value STATUS COOL Y1 ---IN ON/OFF FIRST STAGE COOLING DEMAND (Y1---IN) (cont) Y1---I signal from space thermostat or unitary controller for Cooling Stage 1. = 24 Vac on terminal Y1---I OFF = 0 Vac on terminal Y1---I COOL Y1 ---OUT...
  • Page 29 Table 12 - - Menu Structure* (cont) Parameter Parameter EXPANDED PARAMETER NAME Menu Parameter Default Range and Increment Notes Value SETPOINTS MAT SET 53_F 38 to 70_F; SUPPLY AIR SETPOINT (12_C) (3 to 21_C) Setpoint determines where the economizer will modulate the OA damper to increment by 1 maintain the mixed air temperature.
  • Page 30 Table 12 - - Menu Structure* (cont) Parameter Parameter EXPANDED PARAMETER NAME Menu Parameter Default Range and Increment Notes Value SYSTEM INSTALL 01/01/10 Display order = MM/DD/YY SETUP Setting order = DD, MM, then YY . UNITS DEG _F or _C Sets economizer controller in degrees Fahrenheit or Celsius.
  • Page 31 Table 12 - - Menu Structure (cont) Parameter Parameter EXPANDED PARAMETER NAME Menu Parameter Default Range and Increment Notes Value ADVANCED MAT T CAL 0.0_F +/ ---2.5_F SUPPLY AIR TEMPERATURE CALIBRATION SETUP (or C) (+/ ---1.4_C) Allows for the operator to adjust for an out of calibration supply air (cont) temperature (SAT) sensor OAS T CAL...
  • Page 32 Table 12 - - Menu Structure* (cont) Parameter Parameter EXPANDED PARAMETER NAME Menu Parameter Default Range and Increment Notes Value ALARMS(#) Alarms display only when they are active. The menu title “ALARMS(#)” includes the number of active alarms in parenthesis ( ). When using S---Bus sensors, “SYLK”...

  • Page 33: Sequence Of Operation

    Table 13 – Damper Minimum Position Settings and Readings on Checkout Menu Demand Controlled Ventilation Fan Speed Setpoints Checkout Sensor) MIN POS VMAX ---HS MIN POS H VMAX ---HS MIN POS L VMAX ---LS VENT MIN VMIN ---HS VENT MAX VMAX ---HS VENT MIN H VMIN ---HS...
  • Page 34 Table 16 – Enthalpy Operation No DCV (CO Sensor) - - 1 Speed Fan Demand Outside Air --- Controlled Good to Y1‐I Y2-I Fan Speed Y1-O Y2-O Occupied Unoccupied Ventilation economize? (DCV) High 0-v/Off 0-v/Off MIN POS Closed High 24-v/On 0-v/Off MIN POS Closed...
  • Page 35 Table 18 – Dry Bulb Operation No DCV (CO Sensor) - - 2 Speed Fan Demand Outside Air --- Controlled Good to Y1‐I Y2-I Fan Speed Y1-O Y2-O Occupied Unoccupied Ventilation economize? (DCV) 0-v/Off 0-v/Off MIN POS L Closed 24-v/On 0-v/Off MIN POS L Closed...

  • Page 36: Enthalpy Settings

    Table 20 – Enthalpy Operation No DCV (CO Sensor) - - 2 Speed Fan Demand Outside Air --- Controlled Good to Y1‐I Y2-I Fan Speed Y1-O Y2-O Occupied Unoccupied Ventilation economize? (DCV) 0-v/Off 0-v/Off MIN POS L Closed 24-v/On 0-v/Off MIN POS L Closed High...

  • Page 37: Checkout

    ECONOMIZING DUAL ENTHALPY AVAILABLE HIGH LIMIT NOT AVAILABLE SINGLE ENTHALPY P2 (T,RH) (T,RH) TEMPERATURE a50--- 9997 Fig. 41 - - Single Enthalpy Curve and Boundaries Table 22 – Single Enthalpy and Dual Enthalpy High Limit Curves (EN Units) Point P1 Point P2 Enthalpy Temp.

  • Page 38: Power Loss (Outage Or Brownout)

    Power Loss (Outage or Brownout) — Troubleshooting All setpoints and advanced settings are restored* after any Alarms — power loss or interruption. The economizer module provides alarm messages that * All settings are stored in non--- volatile flash memory. display on the 2- - line LCD. Status —...

  • Page 39: Smoke Detectors

    Smoke Detectors Completing Installation of Return Air Smoke Sensor: 1. Unscrew the two screws holding the Return Air Smoke Detector assembly. See Fig. 43, Step 1. Save Smoke detectors are available as factory- - installed options on the screws. RHH models. Smoke detectors may be specified for Supply Air only without or with economizer.

  • Page 40: Step 12 - Install Accessories

    Unit Without Economizer Economizer 2 Position Damper or 2 Position Damper C160126 Fig. 44 - - Wiring for Optional Economizer Step 12 — Install Accessories Step 13 — Check Belt Tension Available accessories include: Measure the belt span length as shown in Fig. 45. Calculate the required deflection by multiplying the belt Roof curb span length by 1/64.
  • Page 41 C160146 Fig. 45 - - V- - Belt Force Label BLOWER PULLEY V-BELT MOTOR PULLEY MOTOR MOUNTING MOTOR MOUNTING BOLTS (4) PLATE C11504 Fig. 46 - - Belt Drive Motor Mounting 516 01 3605 01 Specifications are subject to change without notice.
  • Page 42 Copyright 2018 International Comfort Products Lewisburg, TN 37091 USA Replaces: 516 01 3605 00 516 01 3605 01 Specifications are subject to change without notice.

  • Page 43: Pre-Start-Up

    UNIT START-UP CHECKLIST (Remove and Store in Job File) NOTE: To avoid injury to personnel and damage to equipment or property when completing the procedures listed in this start---up checklist, use good judgement, follow safe practices, and adhere to the safety considerations/information as outlined in the preceding sections of this Installation Instructions document.
  • Page 44 ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS (IF EQUIPPED) j VERIFY SMOKE DETECTOR UNIT SHUTDOWN BY UTILIZING MAGNET TEST REPEAT PROCESS FOR 2 COMPRESSOR SYSTEMS Copyright 2018 International Comfort Products Lewisburg, TN 37091 USA Replaces: 516 01 3605 00 516 01 3605 01 Specifications are subject to change without notice.

This manual is also suitable for:

Rhh0102Rhh090Rhh073

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