Heat transfer solutions
Heat exchangers
Spirax EasiHeat
TM
HTG nomenclature example:
-
-
Spirax EasiHeat
TM
HTG nomenclature
EHHSC
2 L
P
EL4 ST
HL C V2
G1
W
T2
E R2 C2
2
L
P
Compulsory selection
Building heating unit
Control valve size
Control valve trim
Pressure vessel code
EHHSC = Spirax EasiHeatTM HTG steam side control
1 = DN20
2 = DN25
3 = DN32
4 = DN40
5 = DN50
6 = DN65
L = Low noise trim
P = PED
EL4
ST
HL
C
Mechanical options
Panel options
Communications
Condensate removal
High limit
High limit actuation
(EL4 only)
Isolation
Gasket material
Extras
Control panel
Energy monitoring
Remote access
PN = Pneumatic
ST = Steam trap
PT = Pump trap
PTHC = Pump trap high capacity
HL = Integrated high limit
IHL = Independent high limit
B = Battery back-p
C = Super capacitor
V1 = Ball valve
V2 = BSA
V3 = DBB3
G1 = EPDMP
G2 = Heatseal
G3 = WRAS FKMFF (UK only)
G4 = WRAS EPDMFF (UK only)
W = Wheels
W
S = EN 12828 safety option
T2 = SIMS technology touch screen
P2 = Process controller
E = With energy monitoring
R1 = Level 1 – SMS and E-mail
R2 = Level 2 – Full web access
R3 = Level 3 – SMS + Remote
C1 = Modbus RTU
C2 = BACnet MS / TP
C3 = Modbus TCP / IP
C4 = DeviceNet
C5 = CANopen
C6 = BACnet IP
C7 = Profibus
EL3 = Electric spring return
Actuation
EL4 = Electric super capacitor
V2
G1
T2
E
R2
10.2.12
C2
Typical specification
The building heating unit shall be a Spirax EasiHeatTM HTG compact heat transfer system complete with PLC functionality and SIMS
technology to provide energy monitoring and remote access. The system will be pre-assembled and mounted on a compact frame with
either pneumatic or electric control option.
How to order
All systems are designed for the required heat load with controls to suit the application. The best way of ensuring that we have all the
necessary information for quotation and manufacture is to complete our enquiry data sheet. Copies can be supplied on request and
special requirements should be detailed.
Spirax EasiHeat
TM
HTG (Steam Side Control)
TI-P481-11 CH Issue 1
EN Heating System Compact Heat Transfer Solution
Page 3 of 3
EHHSC
