Pumping Station - Hxa (Only For Use In Double Wall Systems) - Dimplex ESSW2 Owner's Manual

installation instructions
upon an assumed set of environmental conditions.
Extended periods of cold weather, including ambi-
ent air temperatures above the specified limit, may
cause freezing in exposed parts of the system. It
is the owner's responsibility to protect the system
in accordance with the Supplier's instructions (see
Figure 14
From PGA
Pumping Station
F
H
B
80
D
A
To Storage
Tank
A. Insulation Housing
B. Circulation pump
C. Expansion Tank Connection
D. Temperature Dials & Ball Valves with built-
in Check Valves
E. pressure Relief Valve and Discharge pipe
F. Flat plate
G. pressure Gauge
H. Flush and Fill Valves
Connections
Thermometer
Pressure gauge
Pressure relief Valve
Medium
To PGA
Pumping Station
E
Glycol Overflow
To Expansion
C
Tank
G
H
80
D
From Storage
Tank
Specifications for HXA Pumping Station
Solar circuit (primary)
Display Range 70 - 300 °F (20 - 150 °C)
Display Range 0 - 150 psi (0 - 10 bar)
Activation pressure 87 psi (2 bar)
Solar Circuit (primary)
Storage Circuit (Secondary)
operation Section) if the air temperature is antici-
pated to approach the specified freeze tolerance
limit.
Pumping Station - HXa (Only for use
in Double Wall Systems)
Warning: Always completely disconnect the
device from the power supply before performing
maintenance or electrical work.
Warning: Do not make any changes to elec-
trical components, the design or the hydraulic
components to prevent risks or harm to people
or material property.
Warning: Wiring procedures and connections
should be in accordance with the national Elec-
tric code (nEC) and local codes
The HXA pumping Station comes preassembled.
The system must be installed on a load-bearing
wall, in a dry location. The location, relative to the
Solar pumping station, will be dependant on the
type of piping used to connect the two pumping
stations together.
The HXA pumping Station transfers the heat from
the polypropylene Glycol to Distilled water that
circulates through the Solar Storage Tank.
!
nOTE: Access to the Solar Controller, pressure
relief valves and the connecting cables must be
ensured.
1. Select the installation location. Refer to Figure
12 for recommended layout.
2. Align and mark the mounting holes using the
back insulation shell.
3. Drill mounting holes and install wall anchors, if
necessary.
3/4" MnpT to Solar Storage Tank
3/4" MnpT to Expansion Tank
Approved Solar Heat Transfer Liquid
Distilled Water
19