General Description - Bosch RL Series Installation, Operation And Maintenance Manual

3 General Description

The RL series water-to-air heat pump provides an unmatched
combination of performance, features, and flexibility for both
high-performance new construction applications and
replacement of existing water-to-air heat pumps.
All units are certified by the Air-Conditioning, Heating, and
Refrigeration Institute (AHRI) to AHRI/ANSI/ASHRAE/ISO
standard 13256-1 for water-to-air and brine-to-air heat pumps
at Water Loop Heat Pump, Ground Loop Heat Pump, and Ground
Water Heat Pump application points. All RL Water-to-Air Heat
Pumps conform to UL 60335-2-40 by Intertek-ETL.
RL series units are available in two basic configurations: Vertical
Top-Supply Air (VT) and Horizontal End-Supply Air or Straight-
Through Supply Air (HZ). Each of these configurations are
available with either left- or right-hand return air. HZ models can
have the supply air field converted from end discharge air to
straight through with no additional parts required.
RL units can accommodate a wide range of air temperatures,
however, standard RL models should not be used for 100%
outside air without consulting with Engineering Applications
(EAP). 100% outside air routinely requires higher levels of
dehumidification than is available from equipment designed
for return air applications.
NOTICE
RL units are designed and rated for indoor installation only.
NOTICE
DO NOT install RL units in environments that fall below
freezing or exceed 100°F ambient.
NOTICE
RL cabinets are constructed of heavy-gauge galvanized steel
and will resist most common types of corrosion but avoid
installations in high-salt concentration or highly-corrosive
environments.
RL series units are offered with a wide range of factory-installed
options including: internal 2-way valves; DuoGuard™ air coils;
2"4-sided filter racks; MERV 13 filters (with constant airflow
ECM motors); on-board DDC controls; copper or cupro-nickel
water coils; water-side economizers, and more refer to the unit
model number for installed options. See the Options section
on page #32.
RL Series Heat Pumps — 8733842393 (2024/05)
On-board safety features will protect the major unit
components from damage.
General Description
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