Rheem Crossflow RD200, Crossflow Series, Crossflow RD400, Crossflow RD600, Crossflow RD800 Owner's Manual And Installation Instructions
Owner’s Guide
and
Installation Instructions
Rheem Crossflow ™
Instantaneous Heat Exchange
Delivery System
This water heater must be installed and serviced by a qualified person.
Please leave this guide with a responsible officer.
CONTENTS
CONTENTS ....................................................................................................................................................... 2
DESCRIPTION .................................................................................................................................................. 4
SYSTEM INSTALLATION ................................................................................................................................. 9
CROSSFLOW PRIMARY CONNECTIONS ...................................................................................................... 9
POTABLE WATER CONNECTIONS TO CROSSFLOW SYSTEM ................................................................ 11
COLD WATER SUPPLY.................................................................................................................................. 11
HOT WATER SUPPLY .................................................................................................................................... 11
MULTIPLE INSTALLATIONS .......................................................................................................................... 11
ELECTRICAL CONNECTIONS ....................................................................................................................... 12
WATER SUPPLIES ......................................................................................................................................... 13
COMMISSIONING OF THE CROSSFLOW SYSTEM .................................................................................... 15
SETTING THE DELIVERY TEMPERATURE .................................................................................................. 15
SETTING THE GLOBE VALVE ....................................................................................................................... 16
CLEANING THE HEAT EXCHANGER ............................................................................................................ 17
TROUBLE SHOOTING .................................................................................................................................... 17
THE RHEEM WARRANTY - GENERAL ......................................................................................................... 19
Copyright Rheem Australia PTY LTD 2016 2 Dec 2016 AQ0901085 Rev C
Notice to Victorian Customers from the
Victorian Building Authority.
This heat exchange system must be installed by a licensed person as required by the Victorian
Building Act 1993.
Only a licensed person will give you a Compliance Certificate, showing that the work complies with all the
relevant standards. Only a licensed person will have insurance protecting their workmanship for 6 years.
Make sure you use a licensed person to install this water heater and ask for your Compliance Certificate.
PATENTS
This water heater may be protected by one or more patents or registered designs.
TRADEMARKS
®
Registered trademark of Rheem Australia Pty Ltd.
TM
Trademark of Rheem Australia Pty Ltd.
NOTE: Every care has been taken to ensure accuracy in preparation of this publication.
No liability can be accepted for any consequences, which may arise as a result of its application
Copyright Rheem Australia PTY LTD 2016 3 Dec 2016 AQ0901085 Rev C
Chapter 3 – Commissioning Procedures
THIS HEAT EXCHANGE SYSTEM IS NOT SUITABLE FOR APPLICATIONS
WHERE REFRIGERANTS ARE USED AS THE HEATING SOURCE, OR
WHERE THE PRESSURE IN THE NON-POTABLE SIDE OF THE HEAT
EXCHANGER IS LIKELY TO EXCEED THE PRESSURE IN THE POTABLE SIDE.
DESCRIPTION
The Rheem CrossflowTM Delivery Skid is used to instantaneously
transfer heat from the primary circuit to the secondary or domestic hot
water circuit without the need for further storage. A temperature
controlled variable speed circulator for the primary fluid circuit is used to
regulate the rate of energy transfer to the potable water. The Rheem
Crossflow controls allow heat input up to 90°c to be supplied on the
primary side and accurate, reduced temperature to be delivered on the
potable side. The temperature setting is factory set but can be adjusted
on site as required. The system is factory assembled and furnished with
316L stainless steel manifolds and fittings, the steel frame is fully
welded and hot dip galvanised for superior corrosion resistance. The
Rheem Crossflow is available in four sizes and two of the same size
unit can be connected where further redundancy or greater capacity is
required.
PUMP
The Rheem Crossflow is fitted with a temperature controlled variable
speed pump. There are two options available, these being a single
head pump or a dual head pump to provide duty/standby redundancy.
HEAT EXCHANGE
Each system is supplied with two WaterMark certified, 316L stainless
steel single wall brazed plate-type heat exchangers. Each heat exchanger can be separately isolated and
removed for individual maintenance, thus providing redundancy capability. The heat exchangers exhibit
extremely low pressure loss and are insulated to maximise efficiency.
Copyright Rheem Australia PTY LTD 2016 4 Dec 2016 AQ0901085 Rev C
Chapter 3 – Commissioning Procedures
Model
RD200
RD400
RD600
RD800
Nominal Capacity
kW
200
400
600
800
Parameters for
Nominal Capacity
Rating
Primary Side (non-potable)
Inlet Temp
o
C
80
80
80
80
Flow Rate
L/min
48
114
144
186
Pressure Drop
kPa
24
47
36
36
Secondary Side (potable)
Inlet/Outlet Temp
o
C
15/65
15/65
15/65
15/65
Flow Rate
L/min
57
115
172
223
Pressure Drop
kPa
37
47
51
48
Dimensions
H x W x D
mm
1364 x 761 x 700
Weight
kg
130
138
147
156
Pipe Connections Primary Circuit
BSPF
RP1¼
Pipe Connections Secondary Circuit
DN50 ISO EN 1092-1 11B PN40 Flange
Max Operating Pressure Primary Circuit
kPa
1400*
Max Operating Pressure Secondary
Circuit
kPa
1400*
Electrical Supply
230-240V 50/60Hz Hard Wired By Electrician
Min Recommended Circuit Size
Amps
10
Table 1 – Crossflow System Specifications
*The maximum working pressure of each side of the system will be governed by the lowest operating pressure appliance
connected to it. The potable water side (secondary side) must be higher than the non-potable side (primary side).
Copyright Rheem Australia PTY LTD 2016 5 Dec 2016 AQ0901085 Rev C
Chapter 3 – Commissioning Procedures
Crossflow System Dimensions (Dual head pump model shown)
Copyright Rheem Australia PTY LTD 2016 6 Dec 2016 AQ0901085 Rev C
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