Reznor SDH Parts Manuals - Manual (Page 5)

Form P-PREEVA, P/N 263985R7, Page 5
24
25
CODE 19 - High Temperature
Limit Control
Models PDH/SDH/RDH:
P/N 210854 - Sizes 75-150;
P/N 210855 - Sizes 175-225; P/N 211066
- Sizes 250-400 and Models RHH/SHH:
P/N 210855 - Sizes 130, 180, 350; P/N
148588 - Size 260
CODE 11 - Relay for Reheat
Options AU7 and AU8, P/N 234656
CODE 12 -
Compressor
Contactor
for Reheat
Options
AU7 & AU8,
P/N 216386
CODE 20 - 1-Stg
Gas Valve (Opts
AG 1, 40; DG2, 6;
D12B)
CODE 21 - 2-Stg Gas Valve
(Opts AG 2, 3, 15, 16, 60,
61, 62; DG 1, 5; D12 C, F)
CODE 22 - Modulating Gas Valve
(Options DG2, DG6, AG40, D12B)
See Form P-VALVES for replacement valve.
See heater installation manual for altitude adjustment.
If replacing a 1-Stg valve pictured on the left above with the
type on the right, order valve bracket P/N 261650 for Sizes
75, 100, 125, 130, or 150 or P/N 261649 for Sizes 175, 180, or 200.
PDH/
SDH/
RDH
75, 100,
125,
150
175,
200
225, 250,
300, 350,
400A
Natural
Gas
213743 213744 213745
Propane 213746 213748
CODE Description
PDH/SDH/RDH 75 100 125 150 175 200 225 250 300 350 400A
RHH/SHH -- -- -- -- 130 180 -- 260 350
20 Single-Stage Gas Valve - Refer to Form P-VALVES. Replacement valves are identified by Serial No. Code; see page 2.
21 Two-Stage Gas Valve - Refer to Form P-VALVES. Replacement valves are identified by Serial No. Code; see page 2.
22 Modulating Gas Valve (Options DG2, DG6, D12B, AG40)
See TABLE below to select by type of gas and size.
23 Gas Pressure Switch for Modulation Gas Controls (Options DG2,
DG6, D12B, AG40)
Natural 211130
Propane 211710
24 Ball Valve Actuator (8:1 turndown Options AG58 and D12G) Natural Gas
or Propane
N/A 222862
25 Ball Valve (8:1 turndown Options AG58 and D12G) N/A 255786 258321
26 Pressure Transducer (8:1 turndown Options AG58 and D12G)
Natural N/A 257001
Propane N/A 258725
Secondary Panel in the Gas Heat Section Electrical Compartment (low voltage) showing Analog Heating Controls (PDH/SDH/RDH):
27 Unit-Mounted Ductstat (Options AG3 and AG60) 211481
28 Freezestat (digital) with 10ft sensor (Option BE2) 211480
Secondary Panel in the Gas Heat Section Electrical Compartment (low voltage) - Components used in both Analog & Digital Controls (PDH/SDH/RDH):
29 Signal Conditioner (used in Options DG2, DG6, D12B) Opts DG2, DG6, D12B 134170
30 Time Delay Relay
Analog Options AG 60,
61, 62 and all Digital
Options DG 1, 2, 5, 6;
AG40; D12 B, C
121884
31 Venter Speed Controller See TABLE below to select by type of gas, size, and voltage.
32A Electronic Filter (depending on date of manufacture; uses either
31A or B for venter speed change )
171738
32B Time Delay Relay (depending on date of manufacture; uses either
31A or B for venter speed change )
174810
CODE 26 - Pressure
Transducer in Gas
Control AG58 and D12G
RDH
SHH and
RHH
Gas
CODE 24 - Ball
Valve Actuator
CODE 25 -
Ball Valve
175 & 200 130 & 180 Natural
or
Propane
222862
255786
225, 250, 300,
350, & 400
250 & 350 258321
Top View
Side
View
CODE 24 -
Ball Valve
Actuator
Ball Valve
Actuator
CODE 23 -
Single-Stage
Gas Valve
CODE 26 - Pressure
Tranducer
CODE 25 - Ball Valve
Gas Valve
Bracket
Orifice
Manifold Arrangement -- 8:1 Turndown, Deep Modulation Options AG58 and D12G
CODE 27 - Unit-Mounted
Ductstat, P/N 211481
(Options AG3
and AG60)
CODE 28 -
Freezestat,
Option
BE2,
P/N 211480
CODE 29 - Signal
Conditioner, P/N
134170 (Options
AG40, DG2, DG6,
and D12B)
CODE 23 - Gas Pressure Switch for
Optional Modulating Gas Controls,
Options DG2, DG6, D12B, AG40
CODE 30 -
Time Delay
Relay,
P/N 121884
Natural Gas,
1.7” w.c.,
P/N 211130
Propane,
5.0”w.c.,
P/N 211710