Hamworthy
CAD Menu Plugin
Purewell Classic
Purewell Integra
Purewell VariHeat
Warmwell
Wessex Series
Wessex ModuMax
Lilliput HE
Shaftesbury HE
Sherborne
Milborne
Dorchester
Powerstock
Ferndown
Portland
Expansion Vessels
P range ultra high efficiency
LX/L Range Heating Circulators Medium Speed
M Range Heating Circulators Medium Speed
HX Range Heating Circulators Medium Speed
Electronic Variable Speed
W Range Circulators for DHW
Packaged Fan Dilution Systems
Flue Systems
Wessex ModuMax controls
Purewell VariHeat controls

Wessex ModuMax CAD schematics

Controls Scheme 1

Internal time clock controlled system using RVA47

Pipework & controls for internal time clock controlled systems
RVA47 wiring for internal time clock systems
 

Controls Scheme 2

External switched remote enable with RVA47

Pipework & controls for external switched enable systems
RVA47 wiring for externally enabled systems
 

Controls Scheme 3

External 0-10v enabled system with RVA47

Pipework & controls for external 0-10v enabled systems
RVA47 wiring for external 0-10v enabled systems
 

Controls Scheme 4

RVA47 control of primary circuit, time control of secondary circuits using RVA46

Pipework & controls
RVA47 wiring