Lennox CB30M-46 User Manual

Page 1
Corp. 9711–L7
CB29M
CB30M
Service Literature
ELITE 10 CB29M and ELITE 12 CB30M SERIES UNITS
INCLUDING ECB29 ELECTRIC HEAT
The Elite 10 CB29M and Elite 12 CB30M are high efficiency
blower coils. Several models are available in sizes ranging
from 1-1/2 through 5 tons (5.3 through 17.6 kW). Both the
CB29M and CB30M are multi-position (upflow, downflow
or horizontal) units. The units come with a factory
installed check and expansion valve for cooling or heat
pump applications.
CB29M series units are designed to be matched with the
10 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 be primarily
matched with these outdoor units, they may be matched
with other air conditioners or heat pumps as noted in the
rating information.
ECB29 electric heat, in several voltages and kW sizes, can
be field installed in the CB29M and CB30M cabinets.
Information contained in this manual is intended for use
by experienced HVAC service technicians only. All specifi-
cations are subject to change. Procedures outlined in this
manual are presented as a recommendation only and do
not supersede or replace local or state codes.
CB29M CB30M

Lennox CB30M-46 Specifications

General

Brand	Lennox
Model	CB30M-46
Category	Air Conditioner
Language	English

Summary

CB29M Series Specifications

CB29M Blower Performance Data (208/230V)

CB29M-21/26 Blower Performance

Air volume and motor watts at different static pressures and taps.

CB29M-31 Blower Performance

Air volume and motor watts at different static pressures and taps.

CB29M-41 Blower Performance

Air volume and motor watts at different static pressures and taps.

CB29M Blower Performance Data (Continued)

CB29M-41 Blower Performance (460V)

Air volume and motor watts at different static pressures and taps.

CB29M-51 Blower Performance (460V)

Air volume and motor watts at different static pressures and taps.

CB29M-46 Blower Performance (208/230V)

Air volume and motor watts at different static pressures and taps.

CB29M-65 Blower Performance (208/230V)

Air volume and motor watts at different static pressures and taps.

CB29M-51 Blower Performance (208/230V)

Air volume and motor watts at different static pressures and taps.

CB30M Series Specifications

Electric Heat Capacity Data

Btuh output and AFUE for various electric heat models.

CB30M Blower Performance Data (208/230V)

CB30M-21/26 Blower Performance

Air volume and motor watts at different static pressures and taps.

CB30M-31 Blower Performance

Air volume and motor watts at different static pressures and taps.

CB30M-41 Blower Performance

Air volume and motor watts at different static pressures and taps.

CB30M Blower Performance Data (Continued)

CB30M-41 Blower Performance (460V)

Air volume and motor watts at different static pressures and taps.

CB30M-51 Blower Performance (460V)

CB30M-46 Blower Performance (208/230V)

Air volume and motor watts at different static pressures and taps.

CB30M-65 Blower Performance (208/230V)

CB30M-51 Blower Performance (208/230V)

Air volume and motor watts at different static pressures and taps.

Unit Components Overview

Key Unit Components

Optional Electric Heat (ECB29) Details

Electric Heat Component Descriptions

Electric Heat Controls and Safety Devices

Electric Heat Circuit Protection and Elements

Circuit Breakers and Fuses

Terminal Strip and Heating Elements

Configuration Modifications

Cabinet Disassembly and Upflow Setup

Downflow Installation Setup

Installation Configuration Options

Combustible Base and Right-Hand Discharge

Installation Configuration Options (Continued)

Left-Hand Discharge Installation

Operation and Maintenance Procedures

Unit Start-Up and Shutdown

Typical Operating Characteristics

Blower Operation and Static Pressure

Blower Speed Tap Selection

Maintenance Procedures

Filter Maintenance and Sizes

Component Checks

Wiring Diagrams and Sequence of Operations

208/230V Single Phase Sequence of Operation

Wiring Diagrams and Sequence of Operations (Continued)

460V and 575V Three Phase Sequence of Operation

Electric Heat Sequence of Operation (Single Phase)

ECB29-2.5, -5, -5CB, -8, -8CB (208/230V Single Phase)

Electric Heat Sequence of Operation (Single Phase Continued)

ECB29-10, -10CB (208/230V Single Phase)

ECB29-12.5CB, -15CB (208/230V Single Phase)

ECB29-20CB (208/230V Single Phase)

ECB29-25CB, -30CB (208/230V Single Phase)

Electric Heat Sequence of Operation (Three Phase)

ECB29-5, -8, -10, -15CB (208/230V Three Phase)

Electric Heat Sequence of Operation (Three Phase Continued)

ECB29-20CB, -25CB (208/230V Three Phase)

ECB29-10, 15, 20, 25 (460V/575V Three Phase)