Supplied By www.heating spares.co Tel. 0161 620 6677
Page 9
GULFSTREAM
A-CL
ASS
All models have integral 9kW electric boiler for emergency backup for space heating and hot water. Therefore although these appliances
are internally fused at 6A for the gas boiler circuit, a 230V ~, 50Hz electricity supply fused at 45A is required direct from the consumer
unit via a 45A double pole local isolator.
2.1 Physical DATA
The physical characteristics and the clearances required for installing the appliance in a cupboard are shown in figure 2.1 and table 2.1.
The 170mm clearance at the top for the open vented models is based on the assumption that the F&E cistern is located in the same
cupboard as shown schematically in figure 2.1. If the F&E cistern is located elsewhere, the minimum clearance required at the top is
300mm i.e. same as for the ‘-SS’ models. The minimum opening of the cupboard door (measured between the door stops) must be at
least 605mm.
The connection details of the appliance are given in figure 2.5
Table 2.2 Performance Data
GS
A-CLASS
12
OV & SS
GS
A-CLASS
20
OV & SS
GS
A-CLASS
30
OV & SS
Maximum heat output - Condensing (kW)
Maximum heat output - Non condensing (kW)
12.8
11.6
21.0
19.3
31.0
28.8
Minimum heat output - Condensing (kW)
Minimum heat output - Non condensing (kW)
10.7
9.7
10.7
9.7
10.7
9.7
Maximum GROSS heat input (kW)
Maximum NET heat input (kW)
13.3
12.0
22.2
20.0
33.3
30.0
Minimum GROSS heat input (kW)
Minimum NET heat input (kW)
11.10
10.00
11.10
10.00
11.10
10.00
Maximum gas rate (m3/h)
Minimum gas rate (m3/h)
1.27
1.06
2.11
1.06
3.17
1.06
Flue gases maximum flow rate (gm/s)
5.8
9.4
14.0
NOx (mg/kWh)
CO (mg/kWh)
Burner offset pressure (Pa)
-18 to -20
-18 to -20
-18 to -20
Electrical Supply via double pole 45 A isolator
230 ~ 50hz
45A fused
230 ~ 50hz
45A fused
230 ~ 50hz
45A fused
Power consumption @ 230V 50Hz (W)
Minimum in standby mode
Maximum in running mode with gas boiler operating
Maximum in running mode with electric boiler operating
10
205
8,990
10
216
8,990
10
248
8,990
Losses from store 70oC (W)
60
60
60
Hot water performance (figure 2.2)
Min. flow rate at approx 55oC (1/min)
Max flow rate at 35oC temperature rise (1/min)
Specific flow rate 35oC temperature rise (1/min)
Min inlet pressure for nominal flow rate (bar)
Maximum inlet water pressure (bar)
Maximum recommended inlet water pressure (bar)
Nominal hot water temperature set point (oC)
2.0
35
8.5
1.0
10.0
3.5
55+ 2oC
2.0
35
16.0
1.0
10.0
3.5
55+ 2oC
2.0
35
24.5
1.0
10.0
3.5
55+ 2oC
OV
SS
OV
SS
OV
SS
Central heating circuit characteristics
Maximum stored water temperature (oC)
Nominal heating flow temperature (oC)
Minimum water pressure (bar)
Maximum water pressure (bar)
Expansion relief valve setting (bar)
Expansion vessel volume (1)
82
82
---
1.0
---
---
82
82
1.0
2.5
3.0
16
82
82
---
1.0
---
---
82
82
1.0
2.5
3.0
16
82
82
---
1.0
---
---
82
82
1.0
2.5
3.0
16
Connections (See figure 2.5)
Heating flow and return
Cold water (mains) inlet
Hot water outlet
Condensate discharge
Pressure relief / Tundish (copper pipe)
Open vent
22mm copper pipe
22mm compression
22mm copper pipe
22mm OD flexible plastic pipe
---
22mm
22mm
---
---
22mm
22mm
---
---
22mm
22mm
---
TECHNICAL DATA
Summary of Contents for GS A-Class 12/OV
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