Quantum Hot Spring Installation, User And Service Manual

Storage Capacities 90, 125, 150, 170, 200, 250, and 300 Litres

Hot Spring

Installation, User and Service Manual

Domestic Hot Water Cylinder

2

Quantum

Installation, User and Service Manual

Important -This Manual Should Be Left With The Householder After Installation

Index

Section Page

1 Introduction 2
2 Technical specifications 3
3 Check list 3
4 General requirements 4

5 Primary circuit installation 6
6 Secondary circuit installation 10
7 Discharge arrangement 12
8 Electrical installation 15
9 Filling and commissioning 17
10 Servicing and maintenance 18
11 Fault finding 19
12 User instructions 20
13 Warranty 20

1. Introduction

The Quantum “Hot Spring” is a high quality stainless steel domestic hot water cylinder

suitable for use on “unvented” or “open vented” hot water systems. The indirect heat exchange

surfaces are designed to provide a rapid heat up. The unit incorporates a 3kW electric immersion
heater as a “backup” or for summer use. When the unit is supplied for unvented applications, it
comes complete with all the necessary safety equipment to comply with legislation governing the
installation of such systems. The immersion heater and temperature and pressure relief valve
(when required) are factory fitted.

3

2. Technical specifications

Model Number Hot Spring 90 125 150 170 200 250 300

Storage capacity in litres 90 125 150 170 200 250 300
Overall diameter in mm 550 550 550 550 550 550 550
Overall including immersion heater in mm 605 605 605 605 605 605 605
Overall height in mm 977 1202 1327 1477 1677 1977 2287
Weight when full in kg 120 159 188 212 246 299 353
Primary flow/return connections in mm 22 22 22 22 22 22 22
Cold feed/hot draw off connections in mm 22 22 22 22 22 22 28
Maximum water supply pressure in bar 12 12 12 12 12 12 12
System operating pressure (pre-set) in bar 3 3 3 3 3 3 3
Expansion vessel charge pressure in bar 3 3 3 3 3 3 3
Expansion relief valve set pressure in bar 6 6 6 6 6 6 6
Temperature and pressure relief valve set
Lift pressure in bar 7 7 7 7 7 7 7
Lift temperature in degrees centigrade 90 90 90 90 90 90 90
Maximum primary working pressure in bar 3 3 3 3 3 3 3

Performance:

Hot water generation time in minutes from 26 36 37 36 33 35 40
15 to 65 degrees C for ‘Indirect’ cylinder
Hot water generation time in minutes from 52 72 86 98 108 144 202
15 to 65 degrees C for ‘Direct’ cylinder
Regeneration time in minutes for 70% of 18 25 26 25 24 25 29
Contents for ‘Indirect’ cylinder
Regeneration time in minutes for 70% of 27 37 45 51 63 75 136
Contents for ‘Direct’ cylinder

3. Check list

Cylinder/expansion vessel assembly 90 ltr 1 - - - - - ­Cylinder/expansion vessel assembly 125 ltr - 1 - - - - ­Cylinder/expansion vessel assembly 150 ltr - - 1 - - - ­Cylinder/expansion vessel assembly 170 ltr - - - 1 - - ­Cylinder/expansion vessel assembly 200 ltr - - - - 1 - ­Cylinder assembly 250 ltr - - - - - 1 ­Cylinder assembly 300 ltr - - - - - - 1
Expansion vessel 24 ltr, part No - - - - - 1 1
Pressure reducing valve, part No 1 1 1 1 1 1 1
Expansion relief valve, part No 1 1 1 1 1 1 1
T/P valve, pre fitted, part No 1 1 1 1 1 1 1
15/22 Tundish, part No 1 1 1 1 1 1 1
22mm motorised valve, part No 1 1 1 1 1 1 1
Control/limit thermostat, part No 1 1 1 1 1 1 1
Immersion heater pre fitted, part No 1(2) 1(2) 1(2) 1(2) 1(2) 1(2) 1(2)
* Direct cylinder quantity in brackets.

4

4. General requirements

4.1.The Quantum “Hot Spring” domestic hot water cylinder MUST be installed by a
competent person in accordance with section G3 of the current Building Regulations.

4.2. Important - It is important that the installer reads and understands these instructions,

unpacks and familiarises themselves with the equipment before commencing the installation.
Failure to observe these installation instructions could invalidate the warranty.

4.3. Water supply - The warranty requires that the water to be heated be of drinking water
quality and that if water treatment equipment is installed, it must function correctly.
The unit, where possible should be fed via a 22 mm diameter supply pipe. It requires a supply
pressure of 1.5 bar with a flow rate of at least 20 litres per minute as a minimum for it to
function. Even with these rates, flow from the outlets will be disappointing if several outlets are
used simultaneously. Generally speaking, the higher the supply pressure, the better the system
will function. The cylinder control equipment is factory set to limit the system operating pressure
to 3 bar. The maximum supply pressure into the pressure-reducing valve is 12 bar.

4.4. Taps and fittings - All taps and fittings incorporated in the unvented system should have a
rated operating pressure of 7 bar or above.

4.5. Location – The unit is designed to be floor standing, vertically mounted, indoors, in a frost­free environment. When choosing a suitable location for the cylinder, consideration should be
given to the routing of the discharge pipe to a convenient point and also the availability of an
adequate power supply for connecting the immersion heater(s).
The cylinder may stand on any flat and level surface without any special foundation
preparations, provided that it is sufficiently robust to support the full weight of the cylinder. (See
Technical specifications for weights)
The position of the cylinder should be such that easy access is provided for servicing the controls
and replacing the immersion heater should the need arise.
Generally, pipe runs should be made as short as possible and lagged to prevent heat loss.

4.6. Storage and handling – If the cylinder is not being installed immediately, it should remain
in its carton with all pipe end protective caps in situ to to prevent damage. We recommend that
the cylinder be transported to its installation position on a sack truck or similar with the outer
carton in place.

4.7. Pipework connections – All Pipework connections to the cylinder MUST be made in
accordance with Fig 1.

5

Pipework connections.

Fig 1

KEY

ITEM

DESCRIPTION

A

TEMPERAURE AND PRESSURE
RELIEF VALVE

B

HOT WATER

C

HEATING WATER RETURN

D

THERMOSTAT POCKET

E

COLD WATER

F

IMMERSION HEATER

G

HEATING WATER FLOW

6

5. Primary circuit installation

5.1. The Quantum “Hot Spring” cylinder is suitable connecting to most fully pumped domestic

gas or oil fired central heating boilers working on an open vented or sealed system having a
maximum working pressure of 3 bar and a maximum working temperature of 90 degrees
centigrade. If you are in any doubt concerning the suitability of the boiler, consult the boiler
manufacturer. Solid fuel or wood burning boilers MUST NOT be used on unvented hot water
systems. Gravity circulation should also be avoided.

5.2. Systems - For the best results we recommend that the Quantum “Hot Spring” cylinder be
connected to a Honeywell “W”plan type system that gives priority to domestic hot water
(DHW) production. (See Fig 2) This particular system allows all the boiler’s energy to go into
satisfying the hot water demand before switching over on to central heating duty.
If an existing system is a “flow share” arrangement such as a Honeywell “S” or “Y” plan type
system, (see Figs 3 and 4) they will also provide satisfactory results, but during central heating
demands, hot water production will not be as responsive.

5.3. Connections -The primary flow and return connections should be made in accordance with
Fig 1 using 22mm compression fittings, (not supplied).

5.4. The 2 port valve -To prevent gravity circulation when the boiler switches off, the 2 port
motorised valve supplied with the unvented hot water kit MUST be fitted in the primary flow
pipe to the cylinder and wired in accordance with Figs 2,3,or 4 (depending on system design), to
comply with current legislation.

5.5. Hard water areas – If the cylinder is to be used in a hard water area, we recommend that
the primary flow temperature be limited to 75 degrees centigrade. This will help reduce the
migration of suspended solids in the water and help prevent the build up of lime scale.